EXHIBIT 2.1

                                AMENDMENT NO. 1
                                       TO
                          AGREEMENT AND PLAN OF MERGER

    This Amendment No. 1 (the "Amendment") to Agreement and Plan of Merger is
entered into as of April 5, 2001, by and among PBOC Holdings, Inc., a savings
institution holding company organized under the laws of the State of Delaware
(the "Holding Company"), FBOP Corporation, a bank and savings institution
holding company organized under the laws of the State of Illinois ("FBOP") and
FBOP Acquisition Company, a corporation organized under the laws of the State of
Delaware ("Acquisition"). Holding Company and Acquisition are sometimes referred
to herein as the "Constituent Corporations."

                              W I T N E S S E T H:

    WHEREAS, Holding Company, FBOP and Acquisition have entered into an
Agreement and Plan of Merger dated as of December 8, 2000 (the "Merger
Agreement") (with terms used herein but not otherwise defined having the
meanings set forth therein);

    WHEREAS, four class action lawsuits have been filed against Holding Company,
FBOP and Acquisition and certain directors and officers of Holding Company
alleging a breach of fiduciary duties by the directors of Holding Company in
connection with their approval of the Merger Agreement (the "Litigation");

    WHEREAS, Holding Company, FBOP and Acquisition have agreed to enter into a
Memorandum of Understanding with the plaintiffs in the Litigation providing for
the settlement and dismissal with prejudice of the Litigation (the "Memorandum
of Understanding");

    WHEREAS, in connection with such settlement, Holding Company, FBOP and
Acquisition have agreed to amend certain provisions of the Merger Agreement;

    NOW, THEREFORE, for and in consideration of the foregoing premises and of
the mutual agreements, promises and covenants contained herein, the parties
hereto, intending to be legally bound, hereby agree as follows:

    l.  EXCLUSIVITY.  Article V(b) of the Merger Agreement hereby is deleted in
its entirety and replaced by the following;

    "(b) EXCLUSIVITY.

        (i) Neither Holding Company, Savings Institution nor any of Holding
    Company's other Subsidiaries or any of their respective officers, directors,
    employees, representatives, investment bankers (including but not limited to
    Sandler O'Neill and Keefe Bruyette), agents or Affiliates (as defined below)
    shall directly or indirectly solicit, initiate, or encourage inquiries or
    proposals with respect to, furnish any information relating to, or
    participate in any negotiations or discussions concerning (i) any merger,
    sale of assets not in the ordinary course of business, acquisition, business
    combination, change of control or other similar transaction involving
    Holding Company or Savings Institution, or (ii) any purchase or other
    acquisition by any person of any shares of capital stock of Holding Company
    or Savings Institution, or (iii) any issuance by Holding Company or Savings
    Institution of any shares of their respective capital stock (each of
    (i)-(iii) above being an "Alternative Proposal"). Notwithstanding the
    foregoing, Holding Company may furnish information or participate in
    negotiations or discussions with respect to a Superior Proposal (as defined
    below) if the Board of Directors of Holding Company, after receiving advice
    of outside counsel and after consulting with its financial advisors, has
    determined in good faith that the failure to do the same would result in a
    breach of the fiduciary duties of the Board of Directors of Holding Company
    to

    its stockholders under applicable Delaware law. Holding Company immediately
    will inform FBOP or Acquisition orally and in writing of any unsolicited
    offer or request for information relating to an Alternative Proposal or of
    any negotiations or discussions relating to a Superior Proposal (including
    in each case all relevant terms and conditions of any proposal and the
    identity of the party making any such proposal), and will instruct its and
    its Subsidiaries' directors, officers, representatives, investment bankers,
    agents and Affiliates to refrain from taking any action prohibited by this
    Article V(b). In no event may Holding Company provide any information to a
    third party in connection with a Superior Proposal that it has not provided
    or made available to FBOP or Acquisition.

        (ii) In the event that the Board of Directors of Holding Company
    determines in good faith, after receiving advice of outside counsel and
    after consulting with its financial advisors, that it has received a
    Superior Proposal, it shall notify FBOP promptly in writing if it intends to
    terminate this Agreement. Concurrently with any such termination (A) the
    Board of Directors shall cause Holding Company to execute a letter of intent
    or an acquisition agreement with respect to the Superior Proposal, or the
    Board of Directors will adopt a resolution recommending acceptance to
    Holding Company's stockholders of the Superior Proposal, in each case as
    provided in Article XI(a)(vi), and (B) Holding Company shall pay to FBOP the
    termination fee set forth in Article XI(b). For purposes of this Agreement,
    a "Superior Proposal" means any bona fide written proposal, including a
    tender offer, made by a third party (and that did not arise directly or
    indirectly as a result of any breach by Holding Company, Savings
    Institution, or any of Holding Company's other Subsidiaries or any of their
    respective officers, directors, employees, representatives, investment
    bankers (including but not limited to Sandler O'Neill and Keefe Bruyette),
    agents or Affiliates (as defined below), of the provisions of this
    Article V(b) to acquire, directly or indirectly, for consideration
    consisting of cash and/or securities, more than 80% of the voting power of
    the shares of Holding Company then outstanding or all or substantially all
    of the assets of Holding Company or any of the Subsidiaries and provides
    consideration to Holding Company's stockholders which the Board of Directors
    of Holding Company determines in its good faith judgment (after consulting
    with its financial advisors) to be materially more favorable to the Holding
    Company stockholders from a financial point of view than the Per Share
    Merger Consideration, and for which third-party financing, to the extent
    required, is then firmly committed, and which can reasonably be expected to
    be consummated.

        (iii) As used in this Agreement, the term "AFFILIATE" shall mean, with
    respect to any specified person, (1) any other person which, directly or
    indirectly, owns or controls, is under common ownership or control with, or
    is owned or controlled by, such specified person, (2) any other person which
    is a director, officer or partner, of the specified person or a person
    described in clause (1) of this paragraph, (3) another person of which the
    specified person is a director, officer or partner, (4) another person in
    which the specified person has a substantial beneficial interest or as to
    which the specified person serves as trustee or in a similar capacity, or
    (5) any relative or spouse of the specified person or any of the foregoing
    persons, any relative of such spouse or any spouse of any such relative."

    2.  TERMINATION.  Article XI(a) of the Merger Agreement hereby is deleted in
its entirety and replaced by the following:

        ``(a)  TERMINATION.  This Agreement and the Transaction may be
    terminated at any time prior to the filing of the Certificate of Merger with
    the Secretary of State of Delaware, whether before or after action by the
    stockholders of Holding Company as contemplated by Article V(k) of this
    Agreement and without further approval by the outstanding stockholders of
    Holding Company (i) by mutual written consent of the Boards of Directors of
    Acquisition and Holding Company, (ii) by action of the Board of Directors of
    Acquisition in the event of a failure of a condition set

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    forth in Article VII of this Agreement as of the time such condition is
    required hereunder to be fulfilled, (iii) by action of the Board of
    Directors of Holding Company in the event of failure of a condition set
    forth in Article VIII of this Agreement as of the time such condition is
    required hereunder to be fulfilled, or (iv) by action of the Board of
    Directors of either Acquisition or Holding Company in the event of a failure
    of a condition set forth in Article IX of this Agreement as of the time such
    condition is required hereunder to be fulfilled, (v) by action of the Board
    of Directors of Acquisition or FBOP at any time on or prior to December 21,
    2000, if the results of FBOP's investigation of the business, operations,
    assets, liabilities, capital, prospects, investments, affairs, condition
    (financial or otherwise) of Holding Company and its Subsidiaries are not
    satisfactory to FBOP or Acquisition in their sole discretion, whether or not
    any of the foregoing would institute a Material Adverse Change, or (vi) by
    action of the Board of Directors of Holding Company, if Holding Company has
    received a Superior Proposal pursuant to Article V(b) hereof, and the Board
    of Directors of Holding Company has made a determination to accept such
    Superior Proposal subject to approval thereof by Holding Company
    stockholders, and concurrently with the termination of this Agreement
    pursuant to this Article XI(a), (A) Holding Company enters into a letter of
    intent or an acquisition agreement with respect to the Superior Proposal if
    the Superior Proposal is for a merger or the Board of Directors of Holding
    Company adopts a binding resolution to recommend to the stockholders of
    Holding Company that they accept the Superior Proposal if the Superior
    Proposal is for a tender offer and (B) the Holding Company pays the
    termination fee set forth in Article XI(b) hereof."

    3.  TERMINATION FEE.  Article XI(b) of the Merger Agreement hereby is
amended by deleting the words "the Merger" in subsection (i) and replacing them
with the words "this Agreement."

    4.  GOVERNING LAW; SUCCESSORS AND ASSIGNS.  This Amendment shall be governed
by and construed in accordance with the internal laws of the State of Illinois.
This Amendment shall be binding upon the parties hereto and their respective
heirs, successors, or representatives.

    5.  RATIFICATION.  The Merger Agreement and all of the documents referred to
therein or contemplated thereby hereby are amended such that all references
therein to the Merger Agreement are deemed to include this Amendment. The Merger
Agreement as amended hereby shall remain in full force and effect.

    6.  COUNTERPARTS.  This Amendment may be executed in any number of
counterparts, each of which shall be deemed an original hereof and all of which
together shall constitute one and the same document.

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    IN WITNESS WHEREOF, the parties have caused this Amendment to be executed
and delivered as of the day and year first above written.


                                                        
                                                       PBOC HOLDINGS, INC.

                                                       By:    /s/ Rudolf P. Guenzel
                                                              --------------------------------------
                                                       Name:  Rudolf P. Guenzel
                                                              --------------------------------------
                                                       Title: President and CEO
                                                              --------------------------------------

                                                       FBOP ACQUISITION COMPANY

                                                       By:    /s/ Michael E. Kelly
                                                              --------------------------------------
                                                       Name:  Michael E. Kelly
                                                              --------------------------------------
                                                       Title: President
                                                              --------------------------------------

                                                       FBOP CORPORATION

                                                       By:    /s/ Michael E. Kelly
                                                              --------------------------------------
                                                       Name:  Michael E. Kelly
                                                              --------------------------------------
                                                       Title: Chairman of the Board
                                                              --------------------------------------


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