Document:

EXHIBIT 10.2

                        CHANGE TECHNOLOGY PARTNERS, INC.

                                LOCK-UP AGREEMENT

                                                   March 1, 2001

Change Technology Partners, Inc.
16 West 19th Street, 2nd Floor
New York, NY 10011
Attn: Mr. Matthew Ryan, President

Dear Sirs:

                  Pursuant the Agreement and Plan of Merger dated March 1, 2001
(the "MERGER AGREEMENT") among Change Technology Partners, Inc. ("PARENT"), a
Delaware corporation, Iguana Studios I, Inc. ("SUB"), a Delaware corporation,
Iguana Studios, Inc. (the "COMPANY"), a Delaware corporation, and those persons
listed on Exhibit A hereto (the "EXHIBIT A SHAREHOLDERS"), the Company will be
merged with and into Sub and the Sub shall continue as the surviving
corporation. Pursuant to the Merger Agreement, the Exhibit A Shareholders and
those persons listed on Exhibit B hereto (the "Exhibit B Shareholders"; together
with the Exhibit A Shareholders, collectively, the "SHAREHOLDERS"), became
Shareholders of Parent.

                  For good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, each of the Exhibit A
Shareholders hereby agrees that, notwithstanding any provision of the
Stockholders Agreement dated March 1, 2001, by and between Parent, and the
stockholders identified on Exhibit A thereto (the "STOCKHOLDERS AGREEMENT"),
to the contrary, all of the shares of Common Stock of Parent held by such
Exhibit A Shareholder and each of his Permitted Transferees (as defined in the
Stockholders Agreement) shall not be transferable to any third party during
the period commencing on the date hereof and ending 24 months thereafter. All
of the provisions of this Lock-Up Agreement with respect to Exhibit A
Shareholders shall apply to all of the shares Common Stock and Common Stock
Equivalents (as defined in the Stockholders Agreement) now owned or which may
be issued or transferred hereafter to an Exhibit A Shareholder in consequence
of any additional issuance, purchase, exchange or reclassification of any of
such shares or Common Stock Equivalents, corporate reorganization, or any
other form of recapitalization, consolidation, merger, share split or share
dividend, or which are acquired by an Exhibit A Shareholder in any other
manner.

                  For good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, each of the Exhibit B
Shareholders hereby agree that, notwithstanding any provision of the
Stockholders Agreement to the contrary, all of the shares of Common Stock of
Parent held by such Exhibit B Shareholder and each of his Permitted
Transferees shall not be transferable to any third party during the period
commencing on the date hereof and ending 12 months thereafter. All of the
provisions of this Lock-Up Agreement with respect to Exhibit B Shareholders
shall apply to all of the shares Common Stock and Common Stock Equivalents

<PAGE>

now owned or which may be issued or transferred hereafter to an Exhibit B
Shareholder in consequence of any additional issuance, exchange or
reclassification of any of such shares or Common Stock Equivalents, corporate
reorganization, or any other form of recapitalization, consolidation, merger,
share split or share dividend.

                  Notwithstanding the immediately preceding two paragraphs,
this Agreement shall not prohibit (a) any pledge of shares of Common Stock in
connection with a bona fide loan transaction which does not permit the
pledgee, directly or indirectly, to offer, sell, contract to sell or otherwise
dispose of any interest in such shares or securities during the effective term
of this Agreement; (b) a bona fide gift or gifts provided that a Shareholder
provides written notice of such gift or gifts to Parent and the donee or
donees thereof agree in writing to be bound by the restrictions set forth
herein; (c) transfers upon the death of a Shareholder to his executors,
administrators, testamentary trustees, legatees or beneficiaries, provided
that, in each case, any such transferee shall be bound by the provisions of
this Agreement, (d) transfers made by a Shareholder to a trust or
custodianship the beneficiaries of which include the Shareholder, his spouse
or his descendants (biological or adoptive); provided that the transferee or
transferees agree in writing to be bound by the restrictions set forth herein.

                  In furtherance of the foregoing, Parent and its transfer
agent are hereby authorized to decline to make any transfer of such shares of
Common Stock or Common Stock Equivalents if such transfer would constitute a
violation or breach of this Agreement.

                  Article VII of the Merger Agreement is incorporated by
reference herein as if fully set forth herein.

                           [SIGNATURE PAGE FOLLOWS]

                                      2
<PAGE>

                                      Very truly yours,

                                      Exhibit A Shareholders and
                                      Exhibit B Shareholders

                                      /s/ Jason Jercinovic
                                      ------------------------------------------
                                      Name: Jason Jercinovic, as attoney-in-fact

Agreed and Accepted as of the date first above written:

Change Technology Partners, Inc.

By: /s/ Matthew Ryan
    -----------------------------
    Name: Matthew Ryan
    Title: President

                                       3
<PAGE>

                                                                       EXHIBIT A
                                                                       ---------

                              FOUNDER SHAREHOLDERS
                              --------------------

<PAGE>

                                                                       EXHIBIT B
                                                                       ---------

                            NON-FOUNDER SHAREHOLDERS
                            ------------------------<PAGE>   1

                                                                    EXHIBIT 10.4

                         FORM OF REVOLVING CREDIT NOTE

$__________________                                                May ___, 2000
                                                            Nashville, Tennessee

         FOR VALUE RECEIVED, the undersigned, AMSURG CORP., a Tennessee
corporation (the "BORROWER"), hereby promises to pay to _____________________
(the "LENDER") or its registered assigns, at the office of SunTrust Bank
("SUNTRUST") at 201 Fourth Avenue, North, Nashville, Tennessee 37219, on the
Maturity Date, as defined in the Amended and Restated Revolving Credit Agreement
dated as of May 5, 2000 (as the same may be amended, supplemented or otherwise
modified from time to time, the "CREDIT AGREEMENT") among the Borrower, the
lenders from time to time party thereto and SunTrust, as administrative agent
for the lenders, the lesser of the principal sum of ______________________ and
No/100 Dollars ($ _______) or the aggregate unpaid principal amount of all
Revolving Loans made by the Lender to the Borrower pursuant to the Credit
Agreement, in lawful money of the United States of America in immediately
available funds, and to pay interest from the date hereof on the principal
amount thereof from time to time outstanding, in like funds, at said office, at
the rate of rates per annum and payable on such dates as provided in the Credit
Agreement. In addition, should legal action or an attorney-at-law be utilized to
collect any amount due hereunder, the Borrower further promises to pay all costs
of collection, including the reasonable attorneys' fees of the Lender.

         The Borrower promises to pay interest, on demand, on any overdue
principal and, to the extent permitted by law, overdue interest from their due
dates at a rate or rates provided in the Credit Agreement.

         Capitalized terms used, but not otherwise defined, herein shall have
the meanings ascribed to them in the Credit Agreement.

         All borrowings evidenced by this Revolving Credit Note and all payments
and prepayments of the principal hereof and the date thereof shall be endorsed
by the holder hereof on the schedule attached hereto and made a part hereof or
on a continuation thereof which shall be attached hereto and made a part hereof,
or otherwise recorded by such holder in its internal records; provided that the
failure of the holder hereof to make such a notation or any error in such
notation shall not affect the obligations of the Borrower to make the payments
of principal and interest in accordance with the terms of this Revolving Credit
note and the Credit Agreement.

                  [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]

<PAGE>   2

This Revolving Credit Note is issued in connection with, and is entitled to the
benefits of, the Credit Agreement which, among other things, contains
provisions for the acceleration of the maturity hereof upon the happening of
certain events, for prepayment of the principal hereof prior to the maturity
hereof and for the amendment or waiver of certain provisions of the Credit
Agreement, all upon the terms and conditions therein specified. THIS REVOLVING
CREDIT NOTE SHALL BE CONSTRUED IN ACCORDANCE WITH AND GOVERNED BY THE LAWS OF
THE STATE OF TENNESSEE AND ANY APPLICABLE LAWS OF THE UNITED STATES OF AMERICA.

                                    AMSURG CORP.

                                    By:
                                       ----------------------------------------

                                    Title:
                                          -------------------------------------

<PAGE>   3

                              SCHEDULE OF LENDERS
              (pursuant to Regulation S-K, Item 601, Instruction 2)

1.   Revolving Credit Note----SunTrust Bank----$30,000,000

2.   Revolving Credit Note----Bank of America, N.A.----$27,500,000

3.   Revolving Credit Note----Firstar Bank, N.A.----$15,000,000

4.   Revolving Credit Note----Michigan National Bank----$10,000,000

5.   Revolving Credit Note----AmSouth Bank----$10,000,000

6.   Revolving Credit Note----Bank of Oklahoma----$5,000,000

7.   Revolving Credit Note----First Tennessee Bank, National Association----
     $2,500,000

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