WARRANT For the Purchase of Common Stock of DATREK MILLER INTERNATIONAL, INC. A Florida Corporation

Exhibit 4.2

NEITHER THIS WARRANT NOR THE WARRANT STOCK (AS HEREINAFTER DEFINED) HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “ACT”), OR THE SECURITIES LAWS OF ANY STATE. THIS WARRANT AND THE WARRANT STOCK MAY BE TRANSFERRED ONLY IN COMPLIANCE WITH THE ACT AND SUCH LAWS. THIS LEGEND SHALL BE ENDORSED UPON ANY WARRANT ISSUED IN EXCHANGE FOR THIS WARRANT.

Warrant No. W-1

WARRANT

For the Purchase of Common Stock of

DATREK MILLER INTERNATIONAL, INC.

A Florida Corporation

VOID AFTER 5:00 P.M., EASTERN STANDARD TIME, ON JULY 17, 2010.

FOR VALUE RECEIVED, DATREK MILLER INTERNATIONAL, INC., a Florida corporation (the “Company”), hereby certifies that Stanford International Bank Ltd. (the “Holder”) is entitled, subject to the provisions of this Warrant, to purchase from the Company up to Six Hundred Thousand (600,000) shares of common stock (the “Common Shares”), par value $0.001 per share (“Common Stock”), of the Company at an exercise price per Common Share equal to the par value now or hereafter per Common Share as the same may be changed as a result of a reverse split, a split or reclassification (the “Exercise Price”), during the period commencing July 18, 2005 and expiring at 5:00 P.M., Eastern Standard time, on July 17, 2010 (5 years from the date of issuance).

The number of Common Shares to be received upon the exercise of this Warrant may be adjusted from time to time as hereinafter set forth. The Common Shares deliverable upon such exercise, or the entitlement thereto upon such exercise, and as adjusted from time to time, are hereinafter sometimes referred to as “Warrant Stock.” The Warrants issued on the same date hereof bearing the same terms and conditions as this Warrant shall be collectively referred to as the “Warrants”.

The Holder agrees with the Company that this Warrant is issued, and all the rights hereunder shall be held subject to, all of the conditions, limitations and provisions set forth herein.

1. EXERCISE OF WARRANT. This Warrant may be exercised by its presentation and surrender to the Company at its principal office (or such office or agency of the Company as it may designate in writing to the Holder hereof), commencing on July 18, 2005

(“Date of Issuance”) and expiring at 5:00 P.M., Eastern Standard time, on July 17, 2010 (5 years from the Date of Issuance), with the Warrant Exercise Form attached hereto duly executed and accompanied by payment (either in cash or by certified or official bank check or by wire transfer, payable to the order of the Company) of the Exercise Price for the number of shares specified in such Form.

The Company agrees that the Holder hereof shall be deemed the record owner of such Common Shares as of the close of business on the date on which this Warrant shall have been presented and payment made for such Common Shares as aforesaid whether or not the Company or its transfer agent is open for business. Certificates for the Common Shares so purchased shall be delivered to the Holder hereof within a reasonable time, not exceeding 15 days, after the rights represented by this Warrant shall have been so exercised. If this Warrant should be exercised in part only, the Company shall, upon surrender of this Warrant for cancellation, execute and deliver a new Warrant evidencing the rights of the Holder hereof to purchase the balance of the shares purchasable hereunder as soon as reasonably possible.

2. COVENANTS BY THE COMPANY

The Company covenants and agrees as follows:

(a) Reservation of Shares. During the period within which the rights represented by this Warrant may be exercised, the Company shall, at all times, reserve and keep available out of its authorized capital stock, solely for the purposes of issuance upon exercise of this Warrant, such number of its Common Shares as shall be issuable upon the exercise of this Warrant. If at any time the number of authorized Common Shares shall not be sufficient to effect the exercise of this Warrant, the Company will take such corporate action as may be necessary to increase its authorized but unissued Common Shares to such number of shares as shall be sufficient for such purpose. The Company shall have analogous obligations with respect to any other securities or property issuable upon exercise of this Warrant.

(b) Valid Issuance, etc. All Common Shares which may be issued upon exercise of the rights represented by this Warrant included herein will be, upon payment thereof, validly issued, fully paid, non-assessable and free from all taxes, liens and charges with respect to the issuance thereof.

(c) Taxes. All original issue taxes payable in respect of the issuance of Common Shares upon the exercise of the rights represented by this Warrant shall be borne by the Company, but in no event shall the Company be responsible or liable for income taxes or transfer taxes upon the issuance or transfer of this Warrant or the Warrant Stock.

(d) Fractional Shares. The Company shall not be required to issue certificates representing fractions of Common Shares. In lieu of any fractional interests, the Company shall make a cash payment equal to the Exercise Price multiplied by such fraction.

3. EXCHANGE OR ASSIGNMENT OF WARRANT

This Warrant is exchangeable, without expense, at the option of the Holder, upon presentation and surrender hereof to the Company for other Warrants of different denominations,

entitling the Holder to purchase in the aggregate the same number of Common Shares purchasable hereunder. Subject to the provisions of this Warrant and the receipt by the Company of any required representations and agreements, upon surrender of this Warrant to the Company with the Warrant Assignment Form annexed hereto duly executed and funds sufficient to pay any transfer tax, the Company shall, without additional charge, execute and deliver a new Warrant in the name of the assignee named in such instrument of assignment and this Warrant shall promptly be canceled. In the event of a partial assignment of this Warrant, the new Warrants issued to the assignee and the Holder shall make reference to the aggregate number of shares of Warrant Stock issuable upon exercise of this Warrant.

4. RIGHTS OF THE HOLDER

The Holder shall not, by virtue hereof, be entitled to any voting or other rights of a stockholder of the Company, either at law or in equity, and the rights of the Holder are limited to those expressed in this Warrant.

5. ADJUSTMENT OF EXERCISE PRICE

(a) Common Stock Dividends; Common Stock Splits; Reclassification. If the Company, at any time while this Warrant is outstanding, (a) shall pay a stock dividend on its Common Stock, (b) subdivide outstanding shares of Common Stock into a larger number of shares (or combine the outstanding shares of Common Stock into a smaller number of shares) or (c) issue by reclassification of shares of Common Stock any shares of capital stock of the Company, then (i) the Exercise Price shall be multiplied by a fraction, the numerator of which shall be the number of shares of Common Stock outstanding prior to such event and the denominator of which shall be the number of shares of Common Stock outstanding after such event and (ii) the number of shares of the Warrant Stock shall be multiplied by a fraction, the numerator of which shall be the number of shares of Common Stock outstanding immediately after such event and the denominator of which shall be the number of shares of Common Stock outstanding immediately prior to such event. Any adjustment made pursuant to this Section 5.1 shall become effective immediately after the record date for the determination of stockholders entitled to receive such dividend or distribution or, in the case of a subdivision or re-classification, shall become effective immediately after the effective date thereof.

(b) Rights; Options; Warrants or Other Securities. If the Company, at any time while this Warrant is outstanding, shall fix a record date for the issuance of rights, options, warrants or other securities to all the holders of its Common Stock entitling them to subscribe for or purchase, convert to, exchange for or otherwise acquire shares of Common Stock for no consideration or at a price per share less than the Exercise Price, the Exercise Price shall be multiplied by a fraction, the numerator of which shall be the number of shares of Common Stock outstanding immediately prior to such issuance or sale plus the number of shares of Common Stock which the aggregate consideration received by the Company would purchase at the Exercise Price, and the denominator of which shall be the number of shares of Common Stock outstanding immediately prior to such issuance date plus the number of additional shares of Common Stock offered for subscription, purchase, conversion, exchange or acquisition, as the case may be. Such adjustment shall be made whenever such rights, options, warrants or other securities are issued, and shall become effective immediately after the record date for the determination of stockholders entitled to receive such rights, options, warrants or other securities.

(c) Subscription Rights. If the Company, at any time while this Warrant is outstanding, shall fix a record date for the distribution to holders of its Common Stock, evidence of its indebtedness or assets or rights, options, warrants or other security entitling them to subscribe for or purchase, convert to, exchange for or otherwise acquire any security (excluding those referred to in Sections 5(a) and 5(b) above), then in each such case the Exercise Price at which this Warrant shall thereafter be exercisable shall be determined by multiplying the Exercise Price in effect immediately prior to such record date by a fraction, the numerator of which shall be the per-share Market Price on such record date less the then fair market value at such record date of the portion of such assets or evidence of indebtedness so distributed applicable to one outstanding share of Common Stock as determined by the Board of Directors in good faith, and the denominator of which shall be the Exercise Price as of such record date; provided, however, that in the event of a distribution exceeding 10% of the net assets of the Company, such fair market value shall be determined by an appraiser selected in good faith by the registered owners of a majority of the Warrant Stock then outstanding; and provided, further, that the Company, after receipt of the determination by such appraiser shall have the right to select in good faith an additional appraiser meeting the same qualifications, in which case the fair market value shall be equal to the average of the determinations by each such appraiser. Such adjustment shall be made whenever any such distribution is made and shall become effective immediately after the record date mentioned above.

(d) Rounding. All calculations under this Section 5 shall be made to the nearest cent or the nearest l/l00th of a share, as the case may be.

(e) Notice of Adjustment. Whenever the Exercise Price is adjusted pursuant to this Section 5, the Company shall promptly deliver to the Holder a notice setting forth the Exercise Price after such adjustment and setting forth a brief statement of the facts requiring such adjustment. Such notice shall be signed by the chairman, president or chief financial officer of the Company.

(f) Treasury Shares. 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 shares so owned or held shall be considered an issue or sale of Common Stock by the Company.

(g) Change of Control; Compulsory Share Exchange. In case of (A) any Change of Control Transaction (as defined below) or (B) any compulsory share exchange pursuant to which the Common Stock is converted into other securities, cash or property (each, an “Event”), lawful provision shall be made so that the Holder shall have the right thereafter to exercise this Warrant for shares of stock and other securities, cash and property receivable upon or deemed to be held by holders of Common Stock following such Event, and the Holder shall be entitled upon such Event to receive such amount of shares of stock and other securities, cash or property as the shares of the Common Stock of the Company into which this Warrant could have been exercised immediately prior to such Event (without taking into account any limitations or restrictions on the exercisability of this Warrant) would have been entitled; provided, however,

that in the case of a transaction specified in (A), above, in which holders of the Company’s Common Stock receive cash, the Holder shall have the right to exercise the Warrant for such number of shares of the surviving company equal to the amount of cash into which this Warrant is then exercisable, divided by the fair market value of the shares of the surviving company on the effective date of such Event. The terms of any such Event shall include such terms so as to continue to give to the Holder the right to receive the securities, cash or property set forth in this Section 5(g) upon any exercise or redemption following such Event, and, in the case of an Event specified in (A), above, the successor corporation or other entity (if other than the Company) resulting from such reorganization, merger or consolidation, or the person acquiring the properties and assets, or such other controlling corporation or entity as may be appropriate, shall expressly assume the obligation to deliver the securities or other assets which the Holder is entitled to receive hereunder. The provisions of this Section 5(g) shall similarly apply to successive Events. “Change of Control Transaction” means the occurrence of any (i) merger or consolidation of the Company with or into another entity, unless the holders of the Company’s securities immediately prior to such transaction or series of transactions continue to hold at least 50% of such securities following such transaction or series of transactions, (ii) a sale, conveyance, lease, transfer or disposition of all or substantially all of the assets of the Company in one or a series of related transactions or (iii) the execution by the Company of an agreement to which the Company is a party or by which it is bound, providing for any of the events set forth above in (i) or (ii).

(h) Notice of Certain Events. If:

(i) the Company shall declare a dividend (or any other distribution) on its Common Stock;

(ii) the Company shall declare a special nonrecurring cash dividend on or a redemption of its Common Stock;

(iii) the Company shall authorize the granting to the holders of all of its Common Stock rights or warrants to subscribe for or purchase any shares of capital stock of any class or of any rights;

(iv) the approval of any stockholders of the Company shall be required in connection with any capital reorganization, reclassification of the Company’s capital stock, any consolidation or merger to which the Company is a party, any sale or transfer of all or substantially all of the assets of the Company, or any compulsory share exchange whereby the Common Stock is converted into other securities, cash or property; or

(v) the Company shall authorize the voluntary or involuntary dissolution, liquidation or winding up of the affairs of the Company;

then the Company shall cause to be filed at each office or agency maintained for the purpose of exercise of this Warrant, and shall cause to be delivered to the Holder, at least 30 calendar days prior to the applicable record or effective date hereinafter specified, a notice (provided such notice shall not include any material non-public information) stating (a) the date on which a record is to be taken for the purpose of such dividend, distribution, redemption, rights

or warrants, or if a record is not to be taken, the date as of which the holders of Common Stock of record to be entitled to such dividend, distributions, redemption, rights or warrants are to be determined or (b) the date on which such reorganization, reclassification, consolidation, merger, sale, transfer or share exchange is expected to become effective or close, and the date as of which it is expected that holders of Common Stock of record shall be entitled to exchange their shares of Common Stock for securities, cash or other property deliverable upon such reorganization, reclassification, consolidation, merger, sale, transfer or share exchange; provided, however, that the failure to mail such notice or any defect therein or in the mailing thereof shall not affect the validity of the corporate action required to be specified in such notice. Nothing herein shall prohibit the Holder from exercising this Warrant during the 30-day period commencing on the date of such notice.

(i) Increase in Exercise Price. In no event shall any provision in this Section 5 cause the Exercise Price to be greater than the Exercise Price on the date of issuance of this Warrant.

6. RESTRICTIONS ON EXERCISE

Unless, prior to the exercise of the Warrant, the issuance of the Warrant Stock has been registered with the Securities and Exchange Commission pursuant to the Act, the Warrant Exercise Form shall be accompanied by a representation of the Holder to the Company to the effect that such shares are being acquired for investment and not with a view to the distribution thereof, and such other representations and documentation as may be required by the Company, unless in the opinion of counsel to the Company such representations or other documentation are not necessary to comply with the Act.

7. RESTRICTIONS ON TRANSFER

(a) Transfer to Comply with the Securities Act of 1933. Neither this Warrant nor any Warrant Stock may be sold, assigned, transferred or otherwise disposed of except as follows: (1) to a person who, in the opinion of counsel satisfactory to the Company, is a person to whom this Warrant or the Warrant Stock may legally be transferred without registration and without the delivery of a current prospectus under the Act with respect thereto and then only against receipt of an agreement of such person to comply with the provisions of this Section 7 with respect to any resale, assignment, transfer or other disposition of such securities; (2) to any person upon delivery of a prospectus then meeting the requirements of the Act relating to such securities and the offering thereof for such sale, assignment, transfer or disposition; or (3) to any “affiliate” (as such term is used in Rule 144 promulgated pursuant to the Act) of the Holder.

(b) Legend. Subject to the terms hereof, upon exercise of this Warrant and the issuance of the Warrant Stock, all certificates representing such Warrant Stock shall bear on the face or reverse thereof substantially the following legend:

“The securities which are represented by this certificate have not been registered under the Securities Act of 1933, and may not be sold, transferred, hypothecated or otherwise disposed of until a registration statement with respect thereto is declared effective under such act, or the Company receives an opinion of counsel for the Company that an exemption from the registration requirements of such act is available.”

8. LOST, STOLEN OR DESTROYED WARRANTS

In the event that the Holder notifies the Company that this Warrant has been lost, stolen or destroyed and provides (a) a letter, in form reasonably satisfactory to the Company, to the effect that it will indemnify the Company from any loss incurred by it in connection therewith, and/or (b) an indemnity bond in such amount as is reasonably required by the Company, the Company having the option of electing either (a) or (b) or both, the Company may, in its sole discretion, accept such letter and/or indemnity bond in lieu of the surrender of this Warrant as required by Section 1 hereof.

9. SUBSEQUENT HOLDERS

Every Holder hereof, by accepting the same, agrees with any subsequent Holder hereof and with the Company that this Warrant and all rights hereunder are issued and shall be held subject to all of the terms, conditions, limitations and provisions set forth in this Warrant, and further agrees that the Company and its transfer agent, if any, may deem and treat the registered holder of this Warrant as the absolute owner hereof for all purposes and shall not be affected by any notice to the contrary.

10. NOTICES

Any notice required or permitted hereunder shall be given in writing (unless otherwise specified herein) and shall be effective upon personal delivery, via facsimile (upon receipt of confirmation of error-free transmission and mailing a copy of such confirmation, postage prepaid by certified mail, return receipt requested) or two business days following deposit of such notice with an internationally recognized courier service, with postage prepaid and addressed the other party at the following address, or at such other addresses as a party may designate by five days advance written notice to the other party hereto.

11. GOVERNING LAW; JURISDICTION

This Warrant shall be governed by and interpreted in accordance with the laws of the State of Florida, without regard to its principles of conflict of laws. Any action or proceeding seeking to enforce any provision of, or based on any right arising out of, this Warrant may be brought against any party in the federal courts of Florida or the state courts of the State of Florida, and each of the parties consents to the jurisdiction of such courts and hereby waives, to the maximum extent permitted by law, any objection, including any objections based on forum non conveniens, to the bringing of any such proceeding in such jurisdictions.

IN WITNESS WHEREOF, the Company has caused this Warrant to be signed on its behalf, in its corporate name, by its duly authorized officer, all as of the day and year first above written.

DATREK MILLER INTERNATIONAL, INC.

WARRANT EXERCISE FORM

The undersigned hereby irrevocably elects (A) to exercise the Warrant dated                     , 200     (the “Warrant”), pursuant to the provisions of Section 1 of the Warrant, to the extent of purchasing                      shares of the common stock, par value $0.001 per share (the “Common Stock”), of Datrek Miller International, Inc. and hereby makes a payment of $             in payment therefore. In exercising the Warrant, the undersigned hereby confirms that the Common Stock to be issued hereunder is being acquired for investment and not with a view to the distribution thereof. Please issue a certificate or certificates representing said shares of Common Stock in the name of the undersigned or in such other name as is specified below. Please issue a new Warrant for the unexercised portion of the attached Warrant in the name of the undersigned or in such other name as is specified below.