EXHIBIT C

(a) This Additional Investment Right shall be exercisable by the registered Holder at any time and from time to time on or after the date hereof to and including the Expiration Date. At 5:30 P.M., New York City time on the Expiration Date, the portion of this Additional Investment Right not exercised prior thereto shall be and become void and of no value.

(b) The Holder may exercise this Additional Investment Right by delivering to the Company (i) an exercise notice, in the form attached hereto (the "Exercise Notice"), appropriately completed and duly signed, and (ii) payment of the Exercise Price for the number of Additional Investment Right Shares as to which this Additional Investment Right is being exercised (which may take the form of a "cashless exercise" if so indicated in the Exercise Notice and if a "cashless exercise" may occur at such time pursuant to Section 10 below), and the date such items are delivered to the Company (as determined in accordance with the notice provisions hereof) is an "Exercise Date." The Holder shall not be required to deliver the original Additional Investment Right in order to effect an exercise hereunder. Execution and delivery of the Exercise Notice shall have the same effect as cancellation of the original Additional Investment Right and issuance of a New Additional Investment Right evidencing the right to purchase the remaining number of Additional Investment Right Shares.

(a) Upon exercise of this Additional Investment Right, the Company shall promptly (but in no event later than three Trading Days after the Exercise Date) issue or cause to be issued and cause to be delivered to or upon the written order of the Holder and in such name or names as the Holder may designate, a certificate for the Additional Investment Right Shares issuable upon such exercise, free of restrictive legends unless a registration statement covering the resale of the Additional Investment Right Shares and naming the Holder as a selling stockholder thereunder is not then effective and the Additional Investment Right Shares are not freely transferable without volume restrictions pursuant to Rule 144 under the Securities Act. The Holder, or any Person so designated by the Holder to receive Additional Investment Right Shares, shall be deemed to have become holder of record of such Additional Investment Right Shares as of the Exercise Date. The Company shall, upon request of the Holder, use its best efforts to deliver Additional Investment Right Shares hereunder electronically through the Depository Trust Corporation or another established clearing corporation performing similar functions.

(b) This Additional Investment Right is exercisable, either in its entirety or, from time to time, for a portion of the number of Additional Investment Right Shares. Upon surrender of this Additional Investment Right following one or more partial exercises, the Company shall issue or cause to be issued, at its expense, a New Additional Investment Right evidencing the right to purchase the remaining number of Additional Investment Right Shares.

(c) The Company's obligations to issue and deliver Additional Investment Right Shares in accordance with the terms hereof are absolute and unconditional, irrespective of any action or inaction by the Holder to enforce the same the recovery of any judgment against any Person or any action to enforce the same, or any setoff, counterclaim, recoupment, limitation or termination, or any breach or alleged breach by the Holder or any other Person of any obligation to the Company or any violation or alleged violation of law by the Holder or any other Person, and irrespective of any other circumstance which might otherwise limit such obligation of the Company to the Holder in connection with the issuance of Additional Investment Right Shares. Nothing herein shall limit a Holder's right to pursue any other remedies available to it hereunder, at law or in equity including, without limitation, a decree of specific performance and/or injunctive relief with respect to the Company's failure to timely deliver certificates representing shares of Common Stock upon exercise of the Additional Investment Right as required pursuant to the terms hereof.

(a) Stock Dividends and Splits. If the Company, at any time while this Additional Investment Right is outstanding, (i) pays a stock dividend on its Common Stock or otherwise makes a distribution on any class of capital stock that is payable in shares of Common Stock, (ii) subdivides outstanding shares of Common Stock into a larger number of shares, or (iii) combines outstanding shares of Common Stock into a smaller number of shares, then in each such case the Exercise Price shall be multiplied by a fraction of which the numerator shall be the number of shares of Common Stock outstanding immediately before such event and of which the denominator shall be the number of shares of Common Stock outstanding immediately after such event. Any adjustment made pursuant to clause (i) of this paragraph shall become effective immediately after the record date for the determination of stockholders entitled to receive such dividend or distribution, and any adjustment pursuant to clause (ii) or (iii) of this paragraph shall become effective immediately after the effective date of such subdivision or combination.

(b) Pro Rata Distributions. If the Company, at any time while this Additional Investment Right is outstanding, distributes to holders of Common Stock (i) evidences of its indebtedness, (ii) any security (other than a distribution of Common Stock covered by the preceding paragraph), (iii) rights or warrants to subscribe for or purchase any security, or (iv) any other asset (in each case, "Distributed Property"), then in each such case the Exercise Price in effect immediately prior to the record date fixed for determination of stockholders entitled to receive such distribution shall be adjusted (effective on such record date) to equal the product of such Exercise Price times a fraction of which the denominator shall be the average of the Closing Prices for the five Trading Days immediately prior to (but not including) such record date and of which the numerator shall be such average less the then fair market value of the Distributed Property distributed in respect of one outstanding share of Common Stock, as determined by the Company's independent certified public accountants that regularly examine the financial statements of the Company, (an "Appraiser"). In such event, the Holder, after receipt of the determination by the Appraiser, shall have the right to select an additional appraiser (which shall be a nationally recognized accounting firm), in which case such fair market value shall be deemed to equal the average of the values determined by each of the Appraiser and such appraiser. As an alternative to the foregoing adjustment to the Exercise Price, at the request of the Holder delivered before the 90th day after such record date, the Company will deliver to such Holder, within five Trading Days after such request (or, if later, on the effective date of such distribution), the Distributed Property that such Holder would have been entitled to receive in respect of the Additional Investment Right Shares for which this Additional Investment Right could have been exercised immediately prior to such record date. If such Distributed Property is not delivered to a Holder pursuant to the preceding sentence, then upon expiration of or any exercise of the Additional Investment Right that occurs after such record date, such Holder shall remain entitled to receive, in addition to the Additional Investment Right Shares otherwise issuable upon such exercise (if applicable), such Distributed Property.

(c) Fundamental Transactions. If, at any time while this Additional Investment Right is outstanding, (i) the Company effects any merger or consolidation of the Company with or into another Person, (ii) the Company effects any sale of all or substantially all of its assets in one or a series of related transactions, (iii) any tender offer or exchange offer (whether by the Company or another Person) is completed pursuant to which holders of Common Stock are permitted to tender or exchange their shares for other securities, cash or property, or (iv) the Company effects any reclassification of the Common Stock or any compulsory share exchange pursuant to which the Common Stock is effectively converted into or exchanged for other securities, cash or property (other than as a result of a subdivision or combination of shares of Common Stock covered by Section 9(a) above) (in any such case, a "Fundamental Transaction"), then the Holder shall have the right thereafter to receive, upon exercise of this Additional Investment Right, the same amount and kind of securities, cash or property as it would have been entitled to receive upon the occurrence of such Fundamental Transaction if it had been, immediately prior to such Fundamental Transaction, the holder of the number of Additional Investment Right Shares then issuable upon exercise in full of this Additional Investment Right (the "Alternate Consideration"). The aggregate Exercise Price for this Additional Investment Right will not be affected by any such Fundamental Transaction, but the Company shall apportion such aggregate Exercise Price among the Alternate Consideration in a reasonable manner reflecting the relative value of any different components of the Alternate Consideration. If holders of Common Stock are given any choice as to the securities, cash or property to be received in a Fundamental Transaction, then the Holder shall be given the same choice as to the Alternate Consideration it receives upon any exercise of this Additional Investment Right following such Fundamental Transaction. At the Holder's request, any successor to the Company or surviving entity in such Fundamental Transaction shall issue to the Holder a new Additional Investment Right consistent with the foregoing provisions and evidencing the Holder's right to purchase the Alternate Consideration for the aggregate Exercise Price upon exercise thereof. The terms of any agreement pursuant to which a Fundamental Transaction is effected shall include terms requiring any such successor or surviving entity to comply with the provisions of this paragraph (c) and insuring that the Additional Investment Right (or any such replacement security) will be similarly adjusted upon any subsequent transaction analogous to a Fundamental Transaction. If any Fundamental Transaction constitutes or results in a "going private" transaction as defined in Rule 13e-3 under the Exchange Act, then the Company (or any such successor or surviving entity) will redeem this Warrant from the Holder for a purchase price, payable in cash on the closing date of such "going private" transaction, equal to the Black Scholes value of the remaining unexercised portion of this Warrant on the closing date of such "going private" transaction.

(d) Subsequent Equity Sales.

(i) If, at any time while this Additional Investment Right is outstanding, the Company or any Subsidiary issues additional shares of Common Stock or rights, Additional Investment Rights, options or other securities or debt convertible, exercisable or exchangeable for shares of Common Stock or otherwise entitling any Person to acquire shares of Common Stock (collectively, "Common Stock Equivalents") at an effective net price to the Company per share of Common Stock (the "Effective Price") less than the Exercise Price (as adjusted hereunder to such date), then the Exercise Price shall be reduced to equal the Effective Price. If, at any time while this Additional Investment Right is outstanding, the Company or any Subsidiary issues Common Stock or Common Stock Equivalents at an Effective Price greater than the Exercise Price (as adjusted hereunder to such date) but less than the average Closing Price over the five Business Days prior to such issuance (the "Adjustment Price"), then the Exercise Price shall be reduced to equal the product of (A) the Exercise Price in effect immediately prior to such issuance of Common Stock or Common Stock Equivalents times (B) a fraction, the numerator of which is the sum of (1) the number of shares of Common Stock outstanding immediately prior to such issuance, plus (2) the number of shares of Common Stock which the aggregate Effective Price of the Common Stock issued (or deemed to be issued) would purchase at the Adjustment Price, and the denominator of which is the aggregate number of shares of Common Stock outstanding or deemed to be outstanding immediately after such issuance. For purposes of this paragraph, in connection with any issuance of any Common Stock Equivalents, (A) the maximum number of shares of Common Stock potentially issuable at any time upon conversion, exercise or exchange of such Common Stock Equivalents (the "Deemed Number") shall be deemed to be outstanding upon issuance of such Common Stock Equivalents, (B) the Effective Price applicable to such Common Stock shall equal the minimum dollar value of consideration payable to the Company to purchase such Common Stock Equivalents and to convert, exercise or exchange them into Common Stock (net of any discounts, fees, commissions and other expenses), divided by the Deemed Number, and (C) no further adjustment shall be made to the Exercise Price upon the actual issuance of Common Stock upon conversion, exercise or exchange of such Common Stock Equivalents.

(ii) If, at any time while this Additional Investment Right is outstanding, the Company or any Subsidiary issues Common Stock Equivalents with an Effective Price or a number of underlying shares that floats or resets or otherwise varies or is subject to adjustment based (directly or indirectly) on market prices of the Common Stock (a "Floating Price Security"), then for purposes of applying the preceding paragraph in connection with any subsequent exercise, the Effective Price will be determined separately on each Exercise Date and will be deemed to equal the lowest Effective Price at which any holder of such Floating Price Security is entitled to acquire Common Stock on such Exercise Date (regardless of whether any such holder actually acquires any shares on such date).

(iii) Notwithstanding the foregoing, no adjustment will be made under this paragraph (d) in respect to any Excluded Stock.

(e) Number of Additional Investment Right Shares. Simultaneously with any adjustment to the Exercise Price pursuant to paragraphs (a) or (b) of this Section, the number of Additional Investment Right Shares that may be purchased upon exercise of this Additional Investment Right shall be increased or decreased proportionately, so that after such adjustment the aggregate Exercise Price payable hereunder for the increased or decreased number of Additional Investment Right Shares shall be the same as the aggregate Exercise Price in effect immediately prior to such adjustment.

(f) Calculations. All calculations under this Section 9 shall be made to the nearest cent or the nearest 1/100th of a share, as applicable. The number of shares of Common Stock outstanding at any given time shall not include shares owned or held by or for the account of the Company, and the disposition of any such shares shall be considered an issue or sale of Common Stock.

(g) Notice of Adjustments. Upon the occurrence of each adjustment pursuant to this Section 9, the Company at its expense will promptly compute such adjustment in accordance with the terms of this Additional Investment Right and prepare a certificate setting forth such adjustment, including a statement of the adjusted Exercise Price and adjusted number or type of Additional Investment Right Shares or other securities issuable upon exercise of this Additional Investment Right (as applicable), describing the transactions giving rise to such adjustments and showing in detail the facts upon which such adjustment is based. Upon written request, the Company will promptly deliver a copy of each such certificate to the Holder and to the Company's Transfer Agent.

(h) Notice of Corporate Events. If the Company (i) declares a dividend or any other distribution of cash, securities or other property in respect of its Common Stock, including without limitation any granting of rights or warrants to subscribe for or purchase any capital stock of the Company or any Subsidiary, (ii) authorizes or approves, enters into any agreement contemplating or solicits stockholder approval for any Fundamental Transaction or (iii) authorizes the voluntary dissolution, liquidation or winding up of the affairs of the Company, then the Company shall deliver to the Holder a notice describing the material terms and conditions of such transaction, at least 20 calendar days prior to the applicable record or effective date on which a Person would need to hold Common Stock in order to participate in or vote with respect to such transaction, and the Company will take all steps reasonably necessary in order to insure that the Holder is given the practical opportunity to exercise this Additional Investment Right prior to such time so as to participate in or vote with respect to such transaction; provided, however, that the failure to deliver such notice or any defect therein shall not affect the validity of the corporate action required to be described in such notice.

(a) Notwithstanding anything to the contrary contained herein, the number of shares of Common Stock that may be acquired by the Holder upon any exercise of this Additional Investment Right (or otherwise in respect hereof) shall be limited to the extent necessary to insure that, following such exercise (or other issuance), the total number of shares of Common Stock then beneficially owned by such Holder and its Affiliates and any other Persons whose beneficial ownership of Common Stock would be aggregated with the Holder's for purposes of Section 13(d) of the Exchange Act, does not exceed 4.999% (the "Maximum Percentage") of the total number of issued and outstanding shares of Common Stock (including for such purpose the shares of Common Stock issuable upon such exercise). For such purposes, beneficial ownership shall be determined in accordance with Section 13(d) of the Exchange Act and the rules and regulations promulgated thereunder. The Company's obligation to issue shares of Common Stock in excess of the limitation referred to in this Section shall be suspended (and shall not terminate or expire notwithstanding any contrary provisions hereof) until such time, if any, as such shares of Common Stock may be issued in compliance with such limitation, but in no event later than the Expiration Date. Additionally, by written notice to the Company, the Holder may waive the provisions of this Section 11 or increase or decrease the Maximum Percentage to any other percentage specified in such notice, but (i) any such waiver or increase will not be effective until the 61st day after such notice is delivered to the Company, and (ii) any such waiver or increase or decrease will apply only to the Holder and not to any other holder of Additional Investment Rights.

(b) Notwithstanding anything to the contrary contained herein, if the Trading Market is the NASDAQ National Market, or any other market or exchange with similar applicable rules, then the maximum number of shares of Common Stock that the Company may issue pursuant to the Transaction Documents at an effective purchase price less than the Closing Price on the Trading Day immediately preceding the Closing Date (or, if greater, the book value per share of Common Stock calculated in accordance with the Company's most recently filed periodic report with the Commission) equals 2,982,829 shares (the "Issuable Maximum"), unless the Company obtains the necessary stockholder approvals required by the rules and regulations of the Trading Market. If, at the time any Holder requests an exercise of any of the Additional Investment Rights, the Actual Minimum (excluding any shares issued or issuable at an effective purchase price in excess of the Closing Price on the Trading Day immediately preceding the Closing Date (or, if greater, the book value per share of Common Stock calculated in accordance with the Company's most recently filed periodic report with the Commission)) exceeds the Issuable Maximum (and if the Company has not previously obtained the required stockholder approval), then the Company shall issue to the Holder requesting such exercise a number of shares of Common Stock not exceeding such Holder's pro rata portion of the Issuable Maximum (based on such Holder's share (vis-a-vis other Holders) of the aggregate purchase price paid under the Purchase Agreement and taking into account any Additional Investment Right Shares previously issued to such Holder). For the purposes hereof, "Actual Minimum" shall mean, as of any date, the maximum aggregate number of shares of Common Stock then issued or potentially issuable in the future pursuant to the Transaction Documents, including any Underlying Shares issuable upon exercise in full of all Additional Investment Rights, without giving effect to any limits on the number of shares of Common Stock that may be owned by a Holder at any one time.

(a) Subject to the restrictions on transfer set forth on the first page hereof, this Additional Investment Right may be assigned by the Holder. This Additional Investment Right may not be assigned by the Company except to a successor in the event of a Fundamental Transaction. This Additional Investment Right shall be binding on and inure to the benefit of the parties hereto and their respective successors and assigns. Subject to the preceding sentence, nothing in this Additional Investment Right shall be construed to give to any Person other than the Company and the Holder any legal or equitable right, remedy or cause of action under this Additional Investment Right. This Additional Investment Right may be amended only in writing signed by the Company and the Holder and their successors and assigns.

(b) The Company will not, by amendment of its governing documents or through any reorganization, transfer of assets, consolidation, merger, dissolution, issue or sale of securities or any other voluntary action, avoid or seek to avoid the observance or performance of any of the terms of this Additional Investment Right, but will at all times in good faith assist in the carrying out of all such terms and in the taking of all such action as may be necessary or appropriate in order to protect the rights of the Holder against impairment. Without limiting the generality of the foregoing, the Company (i) will not increase the par value of any Additional Investment Right Shares above the amount payable therefor on such exercise, (ii) will take all such action as may be reasonably necessary or appropriate in order that the Company may validly and legally issue fully paid and nonassessable Additional Investment Right Shares on the exercise of this Additional Investment Right, and (iii) will not close its stockholder books or records in any manner which interferes with the timely exercise of this Additional Investment Right.

(c) GOVERNING LAW; VENUE; WAIVER OF JURY TRIAL. ALL QUESTIONS CONCERNING THE CONSTRUCTION, VALIDITY, ENFORCEMENT AND INTERPRETATION OF THIS ADDITIONAL INVESTMENT RIGHT SHALL BE GOVERNED BY AND CONSTRUED AND ENFORCED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK. EACH PARTY HEREBY IRREVOCABLY SUBMITS TO THE EXCLUSIVE JURISDICTION OF THE STATE AND FEDERAL COURTS SITTING IN THE CITY OF NEW YORK, BOROUGH OF MANHATTAN, FOR THE ADJUDICATION OF ANY DISPUTE HEREUNDER OR IN CONNECTION HEREWITH OR WITH ANY TRANSACTION CONTEMPLATED HEREBY OR DISCUSSED HEREIN (INCLUDING WITH RESPECT TO THE ENFORCEMENT OF ANY OF THE TRANSACTION DOCUMENTS), AND HEREBY IRREVOCABLY WAIVES, AND AGREES NOT TO ASSERT IN ANY SUIT, ACTION OR PROCEEDING, ANY CLAIM THAT IT IS NOT PERSONALLY SUBJECT TO THE JURISDICTION OF ANY SUCH COURT, THAT SUCH SUIT, ACTION OR PROCEEDING IS IMPROPER. EACH PARTY HEREBY IRREVOCABLY WAIVES PERSONAL SERVICE OF PROCESS AND CONSENTS TO PROCESS BEING SERVED IN ANY SUCH SUIT, ACTION OR PROCEEDING BY MAILING A COPY THEREOF VIA REGISTERED OR CERTIFIED MAIL OR OVERNIGHT DELIVERY (WITH EVIDENCE OF DELIVERY) TO SUCH PARTY AT THE ADDRESS IN EFFECT FOR NOTICES TO IT UNDER THIS AGREEMENT AND AGREES THAT SUCH SERVICE SHALL CONSTITUTE GOOD AND SUFFICIENT SERVICE OF PROCESS AND NOTICE THEREOF. NOTHING CONTAINED HEREIN SHALL BE DEEMED TO LIMIT IN ANY WAY ANY RIGHT TO SERVE PROCESS IN ANY MANNER PERMITTED BY LAW. THE COMPANY HEREBY WAIVES ALL RIGHTS TO A TRIAL BY JURY.

(d) The headings herein are for convenience only, do not constitute a part of this Additional Investment Right and shall not be deemed to limit or affect any of the provisions hereof.

(e) In case any one or more of the provisions of this Additional Investment Right shall be invalid or unenforceable in any respect, the validity and enforceability of the remaining terms and provisions of this Additional Investment Right shall not in any way be affected or impaired thereby and the parties will attempt in good faith to agree upon a valid and enforceable provision which shall be a commercially reasonable substitute therefor, and upon so agreeing, shall incorporate such substitute provision in this Additional Investment Right.

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1. The Additional Investment Right is currently exercisable to purchase a total of ______________ Additional Investment Right Shares.

2. The undersigned Holder hereby exercises its right to purchase _________________ Additional Investment Right Shares pursuant to the Additional Investment Right.

3. The Holder intends that payment of the Exercise Price shall be made as (check one):

4. If the holder has elected a Cash Exercise, the holder shall pay the sum of $____________ to the Company in accordance with the terms of the Additional Investment Right.

5. Pursuant to this exercise, the Company shall deliver to the holder _______________ Additional Investment Right Shares in accordance with the terms of the Additional Investment Right.

6. Following this exercise, the Additional Investment Right shall be exercisable to purchase a total of ______________ Additional Investment Right Shares.