Document:

<PAGE>

Exhibit 10.67

                          RELOCATION BONUS AGREEMENT

         This Agreement is made by and between Aastrom Biosciences, Inc., a
Michigan Corporation ("Aastrom") and [_________] ("Employee"), as a supplement
to the existing Employment Agreement pursuant to which Aastrom has employed
Employee.

                                   RECITALS

         A.  Aastrom currently employs Employee in the position of Vice
President.

         B.  This Agreement is being entered into to provide Employee with
sufficient incentives and encouragements for Employee to remain with Aastrom,
notwithstanding the possibility of the occurrence in the future of a Merger
Transaction (as defined below) and a request for Employee to relocate following
such Merger Transaction.

         C.  As used in this Agreement, the following terms shall have the
following meanings:

         "Cause" means the occurrence of any of the following events, as
          -----
determined by the Board of Directors of Aastrom, in good faith:

                 (i)     Employee's theft, material act of dishonesty, fraud, or
intentional falsification of any records of Aastrom;

                 (ii)    Employee's improper use or disclosure of confidential
or proprietary information of Aastrom;

                 (iii)   Employee's gross negligence or willful misconduct in
the performance of Employee's assigned duties (but not mere unsatisfactory
performance);

                 (iv)    Employee's conviction (including any plea of guilty or
nolo contendre) of a crime of moral turpitude causing material harm to the
reputation or standing of Aastrom or which materially impairs Employee's ability
to perform his duties for Aastrom.

         "Change in Control" shall mean the occurrence of any of the following
          -----------------
events:

                 (i)     All or substantially all of the assets of Aastrom are
sold;

                 (ii)    Aastrom is acquired by another company, by merger or by
acquisition of the stock of the Company, after which the previous shareholders
of Aastrom own less than 50% of all of the voting stock of the surviving entity.

         "Merger Transaction" means a transaction pursuant to which Aastrom is
          ------------------
acquired by another entity, thereby resulting in a Change in Control of Aastrom.

WHEREFORE, the parties mutually agree as follow:
<PAGE>

         1.  Relocation Bonus. With respect to a Merger Transaction, in the
             ----------------
event the surviving successor entity requests Employee to relocate more than 50
miles from Ann Arbor, Michigan, and such relocation occurs within two (2) years
following the consummation of the Merger Transaction, and Employee stays
employed with the surviving successor entity for one (1) year after such
relocation, then the surviving successor entity shall pay to Employee a
relocation bonus equal to six (6) months of Employee's then current salary rate,
less customary payroll deductions to be paid immediately upon completion of the
one year of employment. Additionally, Employee shall be entitled to receive
customary relocation costs. Further, if the surviving successor entity
terminates Employee's employment without Cause during said one (1) year period
after a relocation, then this relocation bonus shall nevertheless still be
payable in full even though the employment did not continue for the one (1) year
period.

         2.  Duplication.  For avoidance of doubt, if the relocation bonus is
             -----------
payable pursuant to the terms of Section 1 above, said bonus payment shall be in
addition to, and not in lieu of any other payments to which Employee may be
entitled (e.g., Change of Control severance pay for a termination within one (1)
year following consummation of a Merger Transaction, or retention bonus for
remaining employed for one (1) year after the consummation of the Merger
Transaction, as specified in the separate Retention Bonus Agreement between
Aastrom and Employee).

         3.  General.
             -------

             (a)  Prior Understandings.  This Agreement supersedes and replaces
                  --------------------
all prior agreements and understandings with respect to relocation bonus.

             (b)  Successors.  This Agreement shall bind and inure to the
                  ----------
benefit of the parties' successors, assigns, heirs and legal representatives,
and shall become binding by the acquiring company in a Merger Transaction.

             (c)  Amendments.  This Agreement may be modified, amended or
                  ----------
superseded only by a written document signed by both parties.

             (d)  Tax Withholding.  The payments to be made pursuant to this
                  ---------------
Agreement will be subject to customary withholding of applicable income and
employment taxes.

             (e)  No Personal Liability.  No director, officer or shareholder of
                  ---------------------
Aastrom shall have any personal liability for the payment of any severance to
Employee.

             (f)  Consultation.  Employee acknowledges that this Agreement
                  ------------
confers significant legal rights on Employee, and also involves Employee waiving
other potential rights he might have under other agreements and laws. Employee
acknowledges that Aastrom has encouraged Employee to consult with Employee's own
legal, tax, and financial advisers before signing the Agreement; and that
Employee has had adequate time to do so before signing this Agreement.

             (g)  Counterparts.  This Agreement may be executed in counterparts,
                  ------------
and each of which shall be deemed an original, but all of which together will
constitute one and the same instrument.

         IN WITNESS WHEREOF, the parties have executed and delivered this
Agreement as of
<PAGE>

___________________, 2000.

                                              EMPLOYER

                                                   AASTROM BIOSCIENCES, INC.,
                                                   a Michigan Corporation

                                                   By:_________________________
                                                   Its:________________________

                                              EMPLOYEE

                                                   ____________________________<PAGE>

                                                                     EXHIBIT 4.1

                                   INDENTURE

                                by and between

                         PARADIGM BANCORPORATION, INC.

                                      AND

               FIRST UNION TRUST COMPANY, NATIONAL ASSOCIATION,
                                  AS TRUSTEE

                FLOATING RATE SUBORDINATED DEBENTURES DUE 2030

                         Dated as of ___________, 2000

<PAGE>

                               TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                                Page
                                                                                                ----
<S>                                                                                             <C>
ARTICLE I

     DEFINITIONS...............................................................................   2
     Section 1.1   Definitions of Terms........................................................   2

ARTICLE II

     ISSUE, DESCRIPTION, TERMS, CONDITIONS,
     REGISTRATION AND EXCHANGE OF THE DEBENTURES...............................................  10
     Section 2.1   Designation and Principal Amount............................................  10
     Section 2.2   Maturity....................................................................  10
     Section 2.3   Form and Payment............................................................  11
     Section 2.4   Intentionally Left Blank....................................................  11
     Section 2.5   Interest....................................................................  11
     Section 2.6   Execution and Authentications...............................................  13
     Section 2.7   Registration of Transfer and Exchange.......................................  14
     Section 2.8   Temporary Debentures........................................................  15
     Section 2.9   Mutilated, Destroyed, Lost or Stolen Debentures.............................  16
     Section 2.10  Cancellation................................................................  17
     Section 2.11  Benefit of Indenture........................................................  17
     Section 2.12  Authentication Agent........................................................  17

ARTICLE III

     REDEMPTION OF DEBENTURES..................................................................  18
     Section 3.1   Redemption..................................................................  18
     Section 3.2   Special Event Redemption....................................................  18
     Section 3.3   Optional Redemption by Company..............................................  19
     Section 3.4   Notice of Redemption........................................................  19
     Section 3.5   Payment Upon Redemption.....................................................  20
     Section 3.6   No Sinking Fund.............................................................  21

ARTICLE IV

     EXTENSION OF INTEREST PAYMENT PERIOD......................................................  21
     Section 4.1   Extension of Interest Payment Period........................................  21
     Section 4.2   Notice of Extension.........................................................  22
     Section 4.3   Limitation on Transactions..................................................  22
</TABLE>

                                      -2-
<PAGE>

<TABLE>
<S>                                                                                              <C>
ARTICLE V

     PARTICULAR COVENANTS OF THE COMPANY.......................................................  23
     Section 5.1   Payment of Principal and Interest...........................................  23
     Section 5.2   Maintenance of Agency.......................................................  23
     Section 5.3   Paying Agents...............................................................  23
     Section 5.4   Appointment to Fill Vacancy in Office of Trustee............................  24
     Section 5.5   Compliance with Consolidation Provisions....................................  25
     Section 5.6   Limitation on Transactions..................................................  25
     Section 5.7   Covenants as to the Trust...................................................  25
     Section 5.8   Covenants as to Purchases...................................................  26
     Section 5.9   Waiver of Usury, Stay or Extension Laws.....................................  26

ARTICLE VI

     DEBENTUREHOLDERS' LISTS AND REPORTS BY THE COMPANY AND THE TRUSTEE........................  26
     Section 6.1   Company to Furnish Trustee Names and Addresses of Debentureholders..........  26
     Section 6.2   Preservation of Information Communications with Debentureholders............  27
     Section 6.3   Reports by the Company......................................................  27
     Section 6.4   Reports by the Trustee......................................................  28

ARTICLE VII

     REMEDIES OF THE TRUSTEE AND DEBENTUREHOLDERS ON EVENT OF DEFAULT..........................  28
     Section 7.1   Events of Default...........................................................  28
     Section 7.2   Collection of Indebtedness and Suits for Enforcement by Trustee.............  30
     Section 7.3   Application of Moneys Collected.............................................  31
     Section 7.4   Limitation on Suits.........................................................  32
     Section 7.5   Rights and Remedies Cumulative; Delay or Omission not Waiver................  32
     Section 7.6   Control by Debentureholders.................................................  33
     Section 7.7   Undertaking to Pay Costs....................................................  33
     Section 7.8   Direct Action; Right of Set-Off.............................................  34

ARTICLE VIII

     FORM OF DEBENTURE AND ORIGINAL ISSUE......................................................  34
     Section 8.1   Form of Debenture...........................................................  34
     Section 8.2   Original Issue of Debentures................................................  34
</TABLE>

                                      -3-
<PAGE>

<TABLE>
<S>                                                                                              <C>
ARTICLE IX

     CONCERNING THE TRUSTEE....................................................................  35
     Section 9.1   Certain Duties and Responsibilities of the Trustee..........................  35
     Section 9.2   Notice of Defaults..........................................................  36
     Section 9.3   Certain Rights of Trustee...................................................  36
     Section 9.4   Trustee Not Responsible for Recitals, etc...................................  38
     Section 9.5   May Hold Debentures.........................................................  38
     Section 9.6   Moneys Held in Trust........................................................  38
     Section 9.7   Compensation and Reimbursement..............................................  38
     Section 9.8   Reliance on Officers' Certificate...........................................  39
     Section 9.9   Disqualification: Conflicting Interests.....................................  39
     Section 9.10  Corporate Trustee Required; Eligibility.....................................  39
     Section 9.11  Resignation and Removal; Appointment of Successor...........................  40
     Section 9.12  Acceptance of Appointment by Successor......................................  41
     Section 9.13  Merger, Conversion, Consolidation or Succession to Business.................  42
     Section 9.14  Preferential Collection of Claims Against the Company.......................  42

ARTICLE X

     CONCERNING THE DEBENTUREHOLDERS...........................................................  42
     Section 10.1  Evidence of Action by Holders...............................................  42
     Section 10.2  Proof of Execution by Debentureholders......................................  43
     Section 10.3  Who May be Deemed Owners....................................................  43
     Section 10.4  Certain Debentures Owned by Company Disregarded.............................  44
     Section 10.5  Actions Binding on Future Debentureholders..................................  44

ARTICLE XI

     SUPPLEMENTAL INDENTURES...................................................................  45
     Section 11.1  Supplemental Indentures Without the Consent of Debentureholders.............  45
     Section 11.2  Supplemental Indentures with Consent of Debentureholders....................  46
     Section 11.3  Effect of Supplemental Indentures...........................................  46
     Section 11.4  Debentures Affected by Supplemental Indentures..............................  46
     Section 11.5  Execution of Supplemental Indentures........................................  47

ARTICLE XII

     SUCCESSOR CORPORATION.....................................................................  47
     Section 12.1  Company May Consolidate, etc................................................  47
     Section 12.2  Successor Corporation Substituted...........................................  48
     Section 12.3  Evidence of Consolidation, etc. to Trustee..................................  48
</TABLE>

                                      -4-
<PAGE>

<TABLE>
<S>                                                                                              <C>
ARTICLE XIII

     SATISFACTION AND DISCHARGE................................................................  48
     Section 13.1  Satisfaction and Discharge of Indenture.....................................  49
     Section 13.2  Discharge of Obligations....................................................  49
     Section 13.3  Deposited Moneys to be Held in Trust........................................  50
     Section 13.4  Payment of Monies Held by Paying Agents.....................................  50
     Section 13.5  Repayment to Company........................................................  50

ARTICLE XIV

     IMMUNITY OF INCORPORATORS, STOCKHOLDERS, OFFICERS AND DIRECTORS...........................  50
     Section 14.1  No Recourse.................................................................  50

ARTICLE XV

     MISCELLANEOUS PROVISIONS..................................................................  51
     Section 15.1  Effect on Successors and Assigns............................................  51
     Section 15.2  Actions by Successor........................................................  51
     Section 15.3  Surrender of Company Powers.................................................  51
     Section 15.4  Notices.....................................................................  51
     Section 15.5  Governing Law...............................................................  52
     Section 15.6  Treatment of Debentures as Debt.............................................  52
     Section 15.7  Compliance Certificates and Opinions........................................  52
     Section 15.8  Payments on Business Days...................................................  53
     Section 15.9  Conflict with Trust Indenture Act...........................................  53
     Section 15.10 Counterparts................................................................  53
     Section 15.11 Separability................................................................  53
     Section 15.12 Assignment..................................................................  53
     Section 15.13 Acknowledgment of Rights....................................................  53

ARTICLE XVI

     SUBORDINATION OF DEBENTURES...............................................................  54
     Section 16.1  Agreement to Subordinate....................................................  54
     Section 16.2  Default on Senior Debt, Subordinated Debt or Additional Senior Obligations..  54
     Section 16.3  Liquidation; Dissolution; Bankruptcy........................................  55
     Section 16.4  Subrogation.................................................................  56
     Section 16.5  Trustee to Effectuate Subordination.........................................  57
     Section 16.6  Notice by the Company.......................................................  57
     Section 16.7  Rights of the Trustee; Holders of Senior Indebtedness.......................  58
     Section 16.8  Subordination may not be Impaired...........................................  58
</TABLE>

                                      -5-
<PAGE>

                                 CROSS-REFERENCE TABLE

<TABLE>
<CAPTION>
SECTION OF
TRUST INDENTURE ACT                                                                                                 SECTION OF
OF 1939, AS AMENDED                                                                                                 INDENTURE
-------------------                                                                                                 ---------
<S>                                                                                                              <C>
310(a) .....................................................................................................               9.10
310(b) .....................................................................................................                9.9
       .....................................................................................................               9.11
310(c) .....................................................................................................     Not Applicable
311(a) .....................................................................................................               9.14
311(b) .....................................................................................................               9.14
311(c) .....................................................................................................     Not Applicable
312(a) .....................................................................................................             6.1
       .....................................................................................................             6.2(a)
312(b) .....................................................................................................             6.2(c)
312(c) .....................................................................................................             6.2(c)
313(a) .....................................................................................................             6.4(a)
313(b) .....................................................................................................             6.4(b)
313(c) .....................................................................................................             6.4(a)
       .....................................................................................................             6.4(b)
313(d) .....................................................................................................             6.4(c)
314(a) .....................................................................................................             6.3(a)
314(b) .....................................................................................................     Not Applicable
314(c) .....................................................................................................               15.7
314(d) .....................................................................................................     Not Applicable
314(e) .....................................................................................................               15.7
314(f) .....................................................................................................     Not Applicable
315(a) .....................................................................................................             9.1(a)
       .....................................................................................................                9.3
315(b) .....................................................................................................                9.2
315(c) .....................................................................................................             9.1(a)
315(d) .....................................................................................................             9.1(b)
315(e) .....................................................................................................                7.7
316(a) .....................................................................................................                1.1
       .....................................................................................................                7.6
316(b) .....................................................................................................             7.4(b)
316(c) .....................................................................................................            10.1(b)
317(a) .....................................................................................................                7.2
317(b) .....................................................................................................                5.3
318(a) .....................................................................................................               15.9
</TABLE>

Note: This reconciliation and tie sheet shall not, for any purpose, be deemed to
be a part of the Indenture.

                                      -6-
<PAGE>

                                   INDENTURE

     INDENTURE, dated as of _____________, 2000, between PARADIGM
BANCORPORATION, INC., a Texas corporation (the "Company") and FIRST UNION TRUST
COMPANY, NATIONAL ASSOCIATION, a national banking association with its principal
place of business in the State of Delaware (the "Trustee");

                                 RECITALS

     WHEREAS, for its lawful corporate purposes, the Company has duly authorized
the execution and delivery of this Indenture to provide for the issuance of
securities to be known as its Floating Rate Subordinated Debentures due 2030
(hereinafter referred to as the "Debentures"), the form and substance of such
Debentures and the terms, provisions and conditions thereof to be set forth as
provided in this Indenture;

     WHEREAS, Paradigm Capital Trust II, a Delaware statutory business trust
(the "Trust"), has offered to the public up to $____________ aggregate
liquidation amount of its Trust Preferred Securities (as defined herein) and
proposes to invest the proceeds from such offering, together with the proceeds
of the issuance and sale by the Trust to the Company of up to $__________
aggregate liquidation amount of its Common Securities (as defined herein), in up
to $___________ aggregate principal amount of the Debentures;

     WHEREAS, the Company has requested that the Trustee execute and deliver
this Indenture;

     WHEREAS, all requirements necessary to make this Indenture a valid
instrument in accordance with its terms, and to make the Debentures, when
executed by the Company and authenticated and delivered by the Trustee, the
valid obligations of the Company, have been performed, and the execution and
delivery of this Indenture have been duly authorized in all respects;

     WHEREAS, to provide the terms and conditions upon which the Debentures are
to be authenticated, issued and delivered, the Company has duly authorized the
execution of this Indenture; and

     WHEREAS, all things necessary to make this Indenture a valid agreement of
the Company, in accordance with its terms, have been done.

     NOW, THEREFORE, in consideration of the premises and the purchase of the
Debentures by the holders thereof, it is mutually covenanted and agreed as
follows for the equal and ratable benefit of the holders of the Debentures:

                                      -1-
<PAGE>

                                   ARTICLE I

                                 DEFINITIONS

Section 1.1  Definitions of Terms.

     The terms defined in this Section 1.1 (except as in this Indenture
otherwise expressly provided or unless the context otherwise requires) for all
purposes of this Indenture and of any indenture supplemental hereto shall have
the respective meanings specified in this Section 1.1 and shall include the
plural as well as the singular. All other terms used in this Indenture that are
defined in the Trust Indenture Act, or that are by reference in the Trust
Indenture Act defined in the Securities Act (except as herein otherwise
expressly provided or unless the context otherwise requires), shall have the
meanings assigned to such terms in the Trust Indenture Act and in the Securities
Act as in force at the date of the execution of this instrument. All accounting
terms used herein and not expressly defined shall have the meanings assigned to
such terms in accordance with Generally Accepted Accounting Principles.

     "Accelerated Maturity Date" means if the Company elects to accelerate the
Maturity Date in accordance with Section 2.2(c), the date selected by the
Company which is prior to the Scheduled Maturity Date, but is after
____________, 2005.

     "Additional Interest" shall have the meaning set forth in Section 2.5.

     "Additional Senior Obligations" means all indebtedness of the Company
whether incurred on or prior to the date of this Indenture or thereafter
incurred, for claims in respect of derivative products such as interest and
foreign exchange rate contracts, commodity contracts and similar arrangements;
provided, however, that Additional Senior Obligations does not include claims in
respect of Senior Debt or Subordinated Debt or obligations which, by their
terms, are expressly stated to be not superior in right of payment to the
Debentures or to rank pari passu in right of payment with the Debentures. For
purposes of this definition, "claim" shall have the meaning assigned thereto in
Section 101(4) of the United States Bankruptcy Code of 1978, as amended.

     "Administrative Trustees" shall have the meaning set forth in the Trust
Agreement.

     "Affiliate" means, with respect to a specified Person, (i) any Person
directly or indirectly owning, controlling or holding with power to vote 10% or
more of the outstanding voting securities or other ownership interests of the
specified Person; (ii) any Person 10% or more of whose outstanding voting
securities or other ownership interests are directly or indirectly owned,
controlled or held with power to vote by the specified Person; (iii) any Person
directly or indirectly controlling, controlled by, or under common control with
the specified Person; (iv) a partnership in which the specified Person is a
general partner; (v) any officer or director of the specified Person; and (vi)
if the specified Person is an individual, any entity of which the specified
Person is an officer, director or general partner.

                                      -2-
<PAGE>

     "Authenticating Agent" means an authenticating agent with respect to the
Debentures appointed by the Trustee pursuant to Section 2.12.

     "Bankruptcy Law" means Title 11, U.S. Code, or any similar federal or state
law for the relief of debtors.

     "Board of Directors" means the Board of Directors of the Company or any
duly authorized committee of such Board or any other duly designated officers of
the Company.

     "Board Resolution" means a copy of a resolution certified by the Secretary
or an Assistant Secretary of the Company to have been duly adopted by the Board
of Directors and to be in full force and effect on the date of such
certification.

     "Business Day" means, with respect to the Debentures, any day other than a
Saturday or a Sunday or a day on which federal or state banking institutions in
New York, New York or Wilmington, Delaware are authorized or required by law,
executive order or regulation to close, or a day on which the Corporate Trust
Office of the Trustee or the Property Trustee is closed for business.

     "Capital Treatment Event" means the receipt by the Company and the Trust of
an Opinion of Counsel, rendered by a law firm having a recognized national bank
regulatory practice, to the effect that, as a result of any amendment to, or
change (including any announced prospective change) in, the laws (or any
regulations thereunder) of the United States or any political subdivision
thereof or therein, or as a result of any official or administrative
pronouncement or action or judicial decision interpreting or applying such laws
or regulations, which amendment or change is effective or which pronouncement or
decision is announced on or after the date of issuance of the Trust Preferred
Securities under the Trust Agreement, there is more than an insubstantial risk
of impairment of the Company's ability to treat the Trust Preferred Securities
(or any substantial portion thereof) as Tier 1 capital (or the then equivalent
thereof), for purposes of the capital adequacy guidelines of the Federal
Reserve, as then in effect and applicable to the Company; provided, however,
that the Trust or the Company shall have requested and received such an Opinion
of Counsel with regard to such matters within a reasonable period of time after
the Trust or the Company shall have become aware of the possible occurrence of
any such event.

     "Certificate" means a certificate signed by the principal executive
officer, the principal financial officer, the principal accounting officer, the
treasurer or any vice president of the Company. The Certificate need not comply
with the provisions of Section 15.7.

     "Change in 1940 Act Law" shall have the meaning set forth in the definition
of "Investment Company Event."

     "Commission" means the Securities and Exchange Commission.

                                      -3-
<PAGE>

     "Common Securities" means undivided beneficial interests in the assets of
the Trust which rank pari passu with the Trust Preferred Securities; provided,
however, that upon the occurrence of an Event of Default, the rights of holders
of Common Securities to payment in respect of distributions and payments upon
liquidation, redemption and otherwise are subordinated to the rights of holders
of Trust Preferred Securities.

     "Company" means Paradigm Bancorporation, Inc., a corporation duly organized
and existing under the laws of the State of Texas, and, subject to the
provisions of Article XII, shall also include its successors and assigns.

     "Compounded Interest" shall have the meaning set forth in Section 4.1.

     "Corporate Trust Office" means the office of the Trustee at which, at any
particular time, its corporate trust business shall be principally administered,
which office at the date hereof is located at One Rodney Square, 920 King
Street, 1st Floor, Wilmington, Delaware 19801, Attention:  Corporate Trust
Administration.

     "Custodian" means any receiver, trustee, assignee, liquidator, or similar
official under any Bankruptcy Law.

     "Debentures" shall have the meaning set forth in the Recitals hereto.

     "Debentureholder," "holder of Debentures," "registered holder," or other
similar term, means the Person or Persons in whose name or names a particular
Debenture shall be registered on the books of the Company or the Trustee kept
for that purpose in accordance with the terms of this Indenture.

     "Debenture Register" shall have the meaning set forth in Section 2.7(b).

     "Debt" means with respect to any Person, whether recourse is to all or a
portion of the assets of such Person and whether or not contingent, (i) every
obligation of such Person for money borrowed; (ii) every obligation of such
Person evidenced by bonds, debentures, notes or other similar instruments,
including obligations incurred in connection with the acquisition of property,
assets or businesses; (iii) every reimbursement obligation of such Person with
respect to letters of credit, bankers' acceptances or similar facilities issued
for the account of such Person; (iv) every obligation of such Person issued or
assumed as the deferred purchase price of property or services (but excluding
trade accounts payable or accrued liabilities arising in the ordinary course of
business); (v) every capital lease obligation of such Person; and (vi) and every
obligation of the type referred to in clauses (i) through (v) of another Person
and all dividends of another Person the payment of which, in either case, such
Person has guaranteed or is responsible or liable, directly or indirectly, as
obligor or otherwise.

     "Default" means any event, act or condition that with notice or lapse of
time, or both, would constitute an Event of Default.

                                      -4-
<PAGE>

     "Deferred Interest" shall have the meaning set forth in Section 4.1.

     "Dissolution Event" means that as a result of the occurrence and
continuation of a Special Event, the Trust is to be dissolved in accordance with
the Trust Agreement and the Debentures held by the Property Trustee are to be
distributed to the holders of the Trust Securities issued by the Trust pro rata
in accordance with the Trust Agreement.

     "Event of Default" means, with respect to the Debentures, any event
specified in Section 7.1, which has continued for the period of time, if any,
and after the giving of the notice, if any, therein designated.

     "Exchange Act," means the Securities Exchange Act of 1934, as amended, as
in effect at the date of execution of this instrument.

     "Extended Interest Payment Period" shall have the meaning set forth in
Section 4.1.

     "Federal Reserve" means the Board of Governors of the Federal Reserve
System.

     "Floating Interest Rate" shall have the meaning set forth in Section 2.5.

     "Generally Accepted Accounting Principles" means such accounting principles
as are generally accepted at the time of any computation required hereunder.

     "Governmental Obligations" means securities that are (i) direct obligations
of the United States of America for the payment of which its full faith and
credit is pledged; or (ii) obligations of a Person controlled or supervised by
and acting as an agency or instrumentality of the United States of America, the
payment of which is unconditionally guaranteed as a full faith and credit
obligation by the United States of America that, in either case, are not
callable or redeemable at the option of the issuer thereof, and shall also
include a depositary receipt issued by a bank (as defined in Section 3(a)(2) of
the Securities Act) as custodian with respect to any such Governmental
Obligation or a specific payment of principal of or interest on any such
Governmental Obligation held by such custodian for the account of the holder of
such depositary receipt; provided, however, that (except as required by law)
such custodian is not authorized to make any deduction from the amount payable
to the holder of such depositary receipt from any amount received by the
custodian in respect of the Governmental Obligation or the specific payment of
principal of or interest on the Governmental Obligation evidenced by such
depositary receipt.

     "Herein," "hereof," and "hereunder," and other words of similar import,
refer to this Indenture as a whole and not to any particular Article,  Section
or other subdivision.

     "Indenture" means this instrument as originally executed or as it may from
time to time be supplemented or amended by one or more indentures supplemental
hereto entered into in accordance with the terms hereof.

                                      -5-
<PAGE>

     "Interest Payment Date," when used with respect to any installment of
interest on the Debentures, means the date specified in the Debenture or in an
indenture supplemental hereto with respect to the Debentures as the fixed date
on which an installment of interest with respect to the Debentures is due and
payable.

     "Interest Reset Date" means the date specified in the Debenture or in an
indenture supplemental hereto with respect to the Debentures as the fixed date
on which the Floating Interest Rate with respect to the Debentures will be set.

          "Investment Company Act," means the Investment Company Act of 1940, as
amended, as in effect at the date of execution of this instrument.

     "Investment Company Event" means the receipt by the Trust and the Company
of an Opinion of Counsel, rendered by a law firm having a recognized national
tax and securities law practice, to the effect that, as a result of the
occurrence of a change in law or regulation or a change in interpretation or
application of law or regulation by any legislative body, court, governmental
agency or regulatory authority (a "Change in 1940 Act Law"), the Trust is or
shall be considered an "investment company" that is required to be registered
under the Investment Company Act, which Change in 1940 Act Law becomes effective
on or after the date of original issuance of the Trust Preferred Securities
under the Trust Agreement; provided, however, that the Trust or the Company
shall have requested and received such an Opinion of Counsel with regard to such
matters within a reasonable period of time after the Trust or the Company shall
have become aware of the possible occurrence of any such event.

     "Maturity Date" means the date on which the Debentures mature and on which
the principal shall be due and payable together with all accrued and unpaid
interest thereon including Compounded Interest and Additional Interest, if any.

     "Ministerial Action" shall have the meaning set forth in Section 3.2.

     "Officers' Certificate" means a certificate signed by the Chief Executive
Officer, President or a Vice President and by the Treasurer or an Assistant
Treasurer or the Secretary or an Assistant Secretary of the Company that is
delivered to the Trustee in accordance with the terms hereof. Each such
certificate shall include the statements provided for in Section 15.7, if and to
the extent required by the provisions thereof.

     "Opinion of Counsel" means an opinion in writing of independent, outside
legal counsel for the Company that is delivered to the Trustee in accordance
with the terms hereof.  Each such opinion shall include the statements provided
for in Section 15.7, if and to the extent required by the provisions thereof.

     "Outstanding," when used with reference to the Debentures, means, subject
to the provisions of Section 10.4, as of any particular time, all Debentures
theretofore authenticated and delivered by the Trustee under this Indenture,
except (i) Debentures theretofore canceled by the Trustee or any paying agent,
or delivered to the Trustee or any

                                      -6-
<PAGE>

paying agent for cancellation or that have previously been canceled; (ii)
Debentures or portions thereof for the payment or redemption of which moneys or
Governmental Obligations in the necessary amount shall have been deposited in
trust with the Trustee or with any paying agent (other than the Company) or
shall have been set aside and segregated in trust by the Company (if the Company
shall act as its own paying agent); provided, however, that if such Debentures
or portions of such Debentures are to be redeemed prior to the maturity thereof,
notice of such redemption shall have been given as in Article III provided, or
provision satisfactory to the Trustee shall have been made for giving such
notice; and (iii) Debentures in lieu of or in substitution for which other
Debentures shall have been authenticated and delivered pursuant to the terms of
Section 2.7; provided, however, that in determining whether the holders of the
requisite percentage of Debentures have given any request, notice, consent or
waiver hereunder, Debentures held by the Company or any Affiliate of the Company
shall not be included; provided, further, that the Trustee shall be protected in
acting upon any request, notice, consent or waiver unless a Responsible Officer
of the Trustee shall have actual knowledge that the holder of such Debenture is
the Company or an Affiliate thereof.

     "Person" means any individual, corporation, partnership, trust, limited
liability company, joint venture, joint-stock company, unincorporated
organization or government or any agency or political subdivision thereof.

     "Predecessor Debenture" means every previous Debenture evidencing all or a
portion of the same debt as that evidenced by such particular Debenture; and,
for the purposes of this definition, any Debenture authenticated and delivered
under Section 2.9 in lieu of a lost, destroyed or stolen Debenture shall be
deemed to evidence the same debt as the lost, destroyed or stolen Debenture.

     "Property Trustee" has the meaning set forth in the Trust Agreement.

     "Redemption Price" shall have the meaning set forth in Section 3.2.

     "Responsible Officer" when used with respect to the Trustee means any
officer within the Corporate Trust Office of the Trustee with direct
responsibility for the administration of this Indenture, including any vice
president, any assistant vice president, any assistant secretary or any other
officer or assistant officer of the Trustee customarily performing functions
similar to those performed by the Persons who at the time shall be such
officers, respectively, or to whom corporate trust matter is referred because of
his or her knowledge of and familiarity with the particular subject.

     "Scheduled Maturity Date" means _____________, 2030.

     "Securities Act," means the Securities Act of 1933, as amended, as in
effect at the date of execution of this instrument.

     "Senior Debt" means the principal of (and premium, if any) and interest, if
any (including interest accruing on or after the filing of any petition in
bankruptcy or for reorganization relating to the Company whether or not such
claim for post-petition interest is allowed in such proceeding), on

                                      -7-
<PAGE>

Debt, whether incurred on or prior to the date of this Indenture or thereafter
incurred, unless, in the instrument creating or evidencing the same or pursuant
to which the same is outstanding, it is provided that such obligations are not
superior in right of payment to the Debentures or to other Debt which is pari
passu with, or subordinated to, the Debentures; provided, however, that Senior
Debt shall not be deemed to include (i) any Debt of the Company which when
incurred and without respect to any election under section 1111(b) of the United
States Bankruptcy Code of 1978, as amended, was without recourse to the Company;
(ii) any Debt of the Company to any of its subsidiaries; (iii) Debt to any
employee of the Company; (iv) Debt which by its terms is subordinated to trade
accounts payable or accrued liabilities arising in the ordinary course of
business to the extent that payments made to the holders of such Debt by the
holders of the Debentures as a result of the subordination provisions of this
Indenture would be greater than they otherwise would have been as a result of
any obligation of such holders to pay amounts over to the obligees on such trade
accounts payable or accrued liabilities arising in the ordinary course of
business as a result of subordination provisions to which such Debt is subject;
and (v) Debt which constitutes Subordinated Debt.

     "Senior Indebtedness" shall have the meaning set forth in Section 16.2.

     "Special Event" means a Tax Event, an Investment Company Event or a Capital
Treatment Event.

     "Subordinated Debt" means the principal of (and premium, if any) and
interest, if any (including interest accruing on or after the filing of any
petition in bankruptcy or for reorganization relating to the Company whether or
not such claim for post-petition interest is allowed in such proceeding), on
Debt, whether incurred on or prior to the date of this Indenture or thereafter
incurred, which is by its terms expressly provided to be junior and subordinate
to Senior Debt of the Company (other than the Debentures); provided, however,
that Subordinated Debt will not be deemed to include (i) any Debt of the Company
which when incurred and without respect to any election under section 1111(b) of
the United States Bankruptcy Code of 1978, as amended, was without recourse to
the Company, (ii) any Debt of the Company to any of its subsidiaries, (iii) any
Debt to any employee of the Company, (iv) any Debt which by its terms is
subordinated to trade accounts payable or accrued liabilities arising in the
ordinary course of business to the extent that payments made to the holders of
such Debt by the holders of the Subordinated Debentures as a result of the
subordination provisions of the Indenture would be greater than they otherwise
would have been as a result of any obligation of such holders to pay amounts
over to the obligees on such trade accounts payable or accrued liabilities
arising in the ordinary course of business as a result of subordination
provisions to which such Debt is subject, (v) Debt which constitutes Senior Debt
and (vi) any Debt of the Company under debt securities (and guarantees in
respect of these debt securities) initially issued to any trust, or a trustee of
a trust, partnership or other entity affiliated with the Company that is,
directly or indirectly, a financing vehicle of the Company in connection with
the issuance by that entity of preferred securities or other securities which
are intended to qualify for Tier 1 capital treatment.

                                      -8-
<PAGE>

     "Subsidiary" means, with respect to any Person, (i) any corporation at
least a majority of whose outstanding Voting Stock shall at the time be owned,
directly or indirectly, by such Person or by one or more of its Subsidiaries or
by such Person and one or more of its Subsidiaries; (ii) any general
partnership, joint venture or similar entity, at least a majority of whose
outstanding partnership or similar interests shall at the time be owned by such
Person, or by one or more of its Subsidiaries, or by such Person and one or more
of its Subsidiaries; (iii) any limited partnership of which such Person or any
of its Subsidiaries is a general partner; and (iv) any limited liability
company, a majority of the membership interests of which are held by such person
or one or more of its Subsidiaries.

     "Tax Event" means the receipt by the Company and the Trust of an Opinion of
Counsel, rendered by a law firm having a recognized national tax and securities
practice, to the effect that, as a result of any amendment to, or change
(including any announced prospective change) in, the laws (or any regulations
thereunder) of the United States or any political subdivision or taxing
authority thereof or therein, or as a result of any official administrative
pronouncement or judicial decision interpreting or applying such laws or
regulations, which amendment or change is effective or which pronouncement or
decision is announced on or after the date of issuance of the Trust Preferred
Securities under the Trust Agreement, there is more than an insubstantial risk
that (i) the Trust is, or shall be within 90 days after the date of such Opinion
of Counsel, subject to United States federal income tax with respect to income
received or accrued on the Debentures; (ii) interest payable by the Company on
the Debentures is not, or within 90 days after the date of such Opinion of
Counsel, shall not be, deductible by the Company, in whole or in part, for
United States federal income tax purposes; or (iii) the Trust is, or shall be
within 90 days after the date of such Opinion of Counsel, subject to more than a
de minimis amount of other taxes, duties, assessments or other governmental
charges; provided, however, that the Trust or the Company shall have requested
and received such an Opinion of Counsel with regard to such matters within a
reasonable period of time after the Trust or the Company shall have become aware
of the possible occurrence of any of the events described in clauses (i) through
(iii) above.

     "Trust" means Paradigm Capital Trust II, a Delaware statutory business
trust.

     "Trust Agreement" means the Amended and Restated Trust Agreement, dated as
of __________, 2000, of the Trust.

     "Trust Preferred Securities" means undivided beneficial interests in the
assets of the Trust which rank pari passu with Common Securities issued by the
Trust; provided, however, that upon the occurrence of an Event of Default, the
rights of holders of Common Securities to payment in respect of distributions
and payments upon liquidation, redemption and otherwise are subordinated to the
rights of holders of Trust Preferred Securities.

     "Trust Preferred Securities Guarantee" means any guarantee that the Company
may enter into with the Trustee or other Persons that operate directly or
indirectly for the benefit of holders of Trust Preferred Securities.

                                      -9-
<PAGE>

     "Trustee" means First Union Trust Company, National Association and,
subject to the provisions of Article IX, shall also include its successors and
assigns, and, if at any time there is more than one Person acting in such
capacity hereunder, "Trustee" shall mean each such Person.

     "Trust Indenture Act," means the Trust Indenture Act of 1939, as amended,
subject to the provisions of Sections 11.1, 11.2, and 12.1, as in effect at the
date of execution of this instrument.

     "Trust Securities" means the Common Securities and Trust Preferred
Securities, collectively.

     "Voting Stock," as applied to stock of any Person, means shares, interests,
participations or other equivalents in the equity interest (however designated)
in such Person having ordinary voting power for the election of a majority of
the directors (or the equivalent) of such Person, other than shares, interests,
participations or other equivalents having such power only by reason of the
occurrence of a contingency.

                                  ARTICLE II

                    ISSUE, DESCRIPTION, TERMS, CONDITIONS,
                  REGISTRATION AND EXCHANGE OF THE DEBENTURES

Section 2.1  Designation and Principal Amount.

     There is hereby authorized Debentures designated the "Floating Rate
Subordinated Debentures due 2030," limited in aggregate principal amount to
$_________, which amount shall be as set forth in any written order of the
Company for the authentication and delivery of Debentures pursuant to Section
2.6.

Section 2.2  Maturity .

     (a)  The Maturity Date shall be either:

          (i)  the Scheduled Maturity Date; or

          (ii) if the Company elects to accelerate the Maturity Date to be a
               date prior to the Scheduled Maturity Date in accordance with
               Section 2.2(c), the Accelerated Maturity Date.

     (b)  the Company may at any time before the day which is 90 days before the
Scheduled Maturity Date and after _____________, 2005, elect to shorten the
Maturity Date only once to the Accelerated Maturity Date provided that the
Company has received the prior approval of the Federal Reserve if then required
under applicable capital guidelines, policies or regulations of the Federal
Reserve.

                                      -10-
<PAGE>

     (c)  if the Company elects to accelerate the Maturity Date in accordance
with Section 2.2(b), the Company shall give notice to the Trustee and the Trust
(unless the Trust is not the holder of the Debentures, in which case the Trustee
will give notice to the holders of the Debentures) of the acceleration of the
Maturity Date and the Accelerated Maturity Date at least 90 days and no more
than 180 days before the Accelerated Maturity Date.

Section 2.3  Form and Payment.

     The Debentures shall be issued in fully registered certificated form
without interest coupons. Principal and interest on the Debentures issued in
certificated form shall be payable, the transfer of such Debentures shall be
registrable and such Debentures shall be exchangeable for Debentures bearing
identical terms and provisions at the office or agency of the Trustee; provided,
however, that payment of interest may be made at the option of the Company by
check mailed to the holder at such address as shall appear in the Debenture
Register or by wire transfer to an account maintained by the holder as specified
in the Debenture Register, provided that the holder provides proper transfer
instructions by the regular record date. Notwithstanding the foregoing, so long
as the holder of any Debentures is the Property Trustee, the payment of
principal of and interest (including Compounded Interest and Additional
Interest, if any) on such Debentures held by the Property Trustee shall be made
at such place and to such account as may be designated by the Property Trustee.

Section 2.4  Intentionally Left Blank.

Section 2.5  Interest.

     (a)  Each Debenture shall bear interest at the rate of 3.75% per annum over
the Three- Month London interbank offered rate ("Three-Month LIBOR Rate") (the
"Floating Interest Rate") from the original date of issuance until the principal
thereof becomes due and payable, and on any overdue principal and (to the extent
that payment of such interest is enforceable under applicable law) on any
overdue installment of interest at the Floating Interest Rate, compounded
quarterly, payable (subject to the provisions of Article IV) quarterly in
arrears on March 31, June 30, September 30 and December 31 of each year (each
such date, an "Interest Payment Date"), commencing on _________, 2000 to the
Person in whose name such Debenture or any Predecessor Debenture is registered,
at the close of business on the regular record date for such interest
installment, which shall be the 15th day of the last month of the calendar
quarter.

     (b)  The Floating Interest Rate for each interest period will be set on the
15th day of the months, March, June, September and December of each year;
provided, that the initial Floating Interest Rate will be set on _________, 2000
(each such date, an "Interest Reset Date"), until the principal on the
Debentures is paid or made available for payment.  If the Interest Reset Date is
not a Business Day, then such Interest Reset Date shall be the next succeeding
day which is a Business Day.

     (c)  The amount of interest payable for any period shall be computed on the
basis of a 360-day year of twelve 30-day months. The amount of interest payable
for any period shorter than

                                      -11-
<PAGE>

a full quarterly period for which interest is computed, shall be computed on the
basis of the number of days elapsed in a 360-day year of twelve 30-day months.
In the event that any date on which interest is payable on the Debentures is not
a Business Day, then payment of interest payable on such date shall be made on
the next succeeding day which is a Business Day (and without any interest or
other payment in respect of any such delay) except that, if such Business Day is
in the next succeeding calendar year, such payment shall be made on the
immediately preceding Business Day (and without any reduction of interest or any
other payment in respect of any such acceleration), in each case with the same
force and effect as if made on the date such payment was originally payable.

     (d)  The "Three-Month LIBOR Rate" shall mean the rate determined in
accordance with the following provisions:

          (i)  On the second London business day preceding each Interest Reset
     Date (each such date, an "Interest Determination Date"), First Union Trust
     Company, National Association (the "Calculation Agent"), will determine the
     Three-Month LIBOR Rate which shall be the rate for deposits in the London
     interbank market in U.S. dollars having a three-month maturity commencing
     on the second London business day immediately following such Interest
     Determination Date which appears on the Telerate Page 3750 as of 11:00
     a.m., London time, on such Interest Determination Date. "Telerate Page
     3750" means the display on Page 3750 of the Dow Jones Telerate Service (or
     such other page as may replace that page on that service for the purpose of
     displaying London interbank offered rates of major banks for U.S. dollar
     deposits). If the Three-Month LIBOR Rate on such Interest Determination
     Date does not appear on the Telerate Page 3750, such Three-Month LIBOR Rate
     will be determined as described in (ii) below.  London business day means
     any day on which dealings in deposits in U.S. dollars are transacted in the
     London interbank market.

          (ii) With respect to an Interest Determination Date for which the
     Three-Month LIBOR Rate does not appear on the Telerate Page 3750 as
     specified in (i) above, the Calculation Agent will request the principal
     London offices of each of four major banks in the London interbank market,
     as selected by the Calculation Agent, to provide the Calculation Agent with
     its offered quotation for deposits in U.S. dollars having a three-month
     maturity commencing on the second London business day immediately following
     such Interest Determination Date to prime banks in the London interbank
     market at approximately 11:00 a.m., London time, on such Interest
     Determination Date and in a principal amount that is representative for a
     single transaction in such market at such time. If at least two such
     quotations are provided, the Three-Month LIBOR Rate on such Interest
     Determination Date will be the arithmetic mean (rounded upwards, if
     necessary, to the nearest one hundred-thousandth of a percentage point,
     with five or more one-millionths of one percentage point rounded upwards)
     of such quotations. If fewer than two quotations are provided, the Three-
     Month LIBOR Rate determined on such Interest Determination Date will be the
     arithmetic mean (rounded upwards, if necessary, to the nearest one hundred-
     thousandth of a percentage point, with five or more one-millionths of one
     percentage point rounded upwards) of the rates quoted at approximately
     11:00 a.m., New York City time, on such Interest Determination Date for
     loans in U.S. dollars to leading European banks, having

                                      -12-
<PAGE>

     a three-month maturity commencing on the second London business day
     immediately following such Interest Determination Date and in a principal
     amount that is representative for a single transaction in such market at
     such time by three major banks in New York City selected by the Calculation
     Agent; provided, however, if the banks so selected by the Calculation Agent
     are not quoting as aforesaid, the Three-Month LIBOR Rate with respect to
     such Interest Determination Date will be the Three-Month LIBOR Rate in
     effect on such Interest Determination Date.

     The amount of interest for each day that a Debenture is outstanding (the
"Daily Interest Amount") will be calculated by dividing the Floating Interest
amount of such Debenture.  The amount of interest to be paid on such Debenture
for any Interest Period will be calculated by adding the Daily Interest Amounts
for each day in such Interest Period.

     The Floating Interest Rate will in no event be higher than the maximum rate
permitted by the law of the State of Texas, or, if higher, the law of the United
States of America.

     The Floating Interest Rate and amount of interest to be paid on the
Debentures for each Interest Period will be determined by the Calculation Agent.
All calculations made by the Calculation Agent shall, in the absence of manifest
error, be conclusive for all purposes and binding on the Company and Holders of
the Debentures.  So long as the Three-Month LIBOR Rate is required to be
determined with respect to the Debentures, there will at all times be a
Calculation Agent. In the event that any then acting Calculation Agent shall be
unable or unwilling to act, or that such Calculation Agent shall fail duly to
establish the Three-Month LIBOR Rate for any Interest Period, or that the
Company proposes to remove such Calculation Agent, the Company shall appoint
another person which is a bank, trust company, investment banking firm or other
financial institution to act as the Calculation Agent.

     (e)  If, at any time while the Property Trustee is the holder of any
Debentures, the Trust or the Property Trustee is required to pay any taxes,
duties, assessments or governmental charges of whatever nature (other than
withholding taxes) imposed by the United States, or any other taxing authority,
then, in any case, the Company shall pay as additional interest ("Additional
Interest") on the Debentures held by the Property Trustee, such additional
amounts as shall be required so that the net amounts received and retained by
the Trust and the Property Trustee after paying such taxes, duties, assessments
or other governmental charges shall be equal to the amounts the Trust and the
Property Trustee would have received had no such taxes, duties, assessments or
other government charges been imposed.

Section 2.6  Execution and Authentications.

     (a)  The Debentures shall be signed on behalf of the Company by its
President or one of its Vice Presidents, under its corporate seal, if any,
attested by its Secretary or one of its Assistant

                                      -13-
<PAGE>

Secretaries. Signatures may be in the form of a manual or facsimile signature.
The Company may use the facsimile signature of any Person who shall have been a
President or Vice President thereof, or of any Person who shall have been a
Secretary or Assistant Secretary thereof, notwithstanding the fact that at the
time the Debentures shall be authenticated and delivered or disposed of such
Person shall have ceased to be the President or a Vice President, or the
Secretary or an Assistant Secretary, of the Company (and any such signature
shall be binding on the Company). The seal of the Company may be in the form of
a facsimile of such seal and may be impressed, affixed, imprinted or otherwise
reproduced on the Debentures. The Debentures may contain such notations, legends
or endorsements required by law, stock exchange rule or usage. Each Debenture
shall be dated the date of its authentication by the Trustee. A Debenture shall
not be valid until authenticated manually by an authorized signatory of the
Trustee, or by an Authenticating Agent. Such signature shall be conclusive
evidence that the Debenture so authenticated has been duly authenticated and
delivered hereunder and that the holder is entitled to the benefits of this
Indenture.

     (b)  At any time and from time to time after the execution and delivery of
this Indenture, the Company may deliver Debentures executed by the Company to
the Trustee for authentication, together with a written order of the Company for
the authentication and delivery of such Debentures signed by its Chairman,
President or any Vice President and its Treasurer or any Assistant Treasurer,
and the Trustee in accordance with such written order shall authenticate and
deliver such Debentures.

     (c)  In authenticating such Debentures and accepting the additional
responsibilities under this Indenture in relation to such Debentures, the
Trustee shall be entitled to receive, and (subject to Section 9.1) shall be
fully protected in relying upon, an Opinion of Counsel stating that the form and
terms thereof have been established in conformity with the provisions of this
Indenture.

     (d)  The Trustee shall not be required to authenticate such Debentures if
the issue of such Debentures pursuant to this Indenture shall affect the
Trustee's own rights, duties or immunities under the Debentures and this
Indenture or otherwise in a manner that is not reasonably acceptable to the
Trustee.

Section 2.7  Registration of Transfer and Exchange.

     (a)  Debentures may be exchanged upon presentation thereof at the office or
agency of the Company designated for such purpose in New York, New York or
Wilmington, Delaware or at the office of the Debenture Registrar, for other
Debentures and for a like aggregate principal amount in denominations of
integral multiples of $10, upon payment of a sum sufficient to cover any tax or
other governmental charge in relation thereto, all as provided in this Section
2.7. In respect of any Debentures so surrendered for exchange, the Company shall
execute, the Trustee shall authenticate and such office or agency shall deliver
in exchange therefor the Debenture or Debentures that the Debentureholder making
the exchange shall be entitled to receive, bearing numbers not contemporaneously
outstanding.

                                      -14-
<PAGE>

     (b)  The Company shall keep, or cause to be kept, at its office or agency
designated for such purpose in New York, New York or Wilmington, Delaware or at
the office of the Debenture Registrar or such other location designated by the
Company a register or registers (herein referred to as the "Debenture Register")
in which, subject to such reasonable regulations as it may prescribe, the
Company shall register the Debentures and the transfers of Debentures as in this
Article II provided and which at all reasonable times shall be open for
inspection by the Trustee. The registrar for the purpose of registering
Debentures and transfer of Debentures as herein provided shall initially be the
Trustee and thereafter as may be appointed by the Company as authorized by Board
Resolution (the "Debenture Registrar"). Upon surrender for transfer of any
Debenture at the office or agency of the Company designated for such purpose,
the Company shall execute, the Trustee shall authenticate and such office or
agency shall deliver in the name of the transferee or transferees a new
Debenture or Debentures for a like aggregate principal amount. All Debentures
presented or surrendered for exchange or registration of transfer, as provided
in this Section 2.7, shall be accompanied (if so required by the Company or the
Debenture Registrar) by a written instrument or instruments of transfer, in form
satisfactory to the Company or the Debenture Registrar, duly executed by the
registered holder or by such holder's duly authorized attorney in writing.

     (c)  No service charge shall be made for any exchange or registration of
transfer of Debentures, or issue of new Debentures in case of partial
redemption, but the Company may require payment of a sum sufficient to cover any
tax or other governmental charge in relation thereto, other than exchanges
pursuant to Section 2.8, the second paragraph of Section 3.5 and Section 11.4
not involving any transfer.

     (d)  The Company shall not be required (i) to issue, exchange or register
the transfer of any Debentures during a period beginning at the opening of
business 15 days before the day of the mailing of a notice of redemption of less
than all the Outstanding Debentures and ending at the close of business on the
day of such mailing; nor (ii) to register the transfer of or exchange any
Debentures or portions thereof called for redemption.

     (e)  Debentures may only be transferred, in whole or in part, in accordance
with the terms and conditions set forth in this Indenture. Any transfer or
purported transfer of any Debenture not made in accordance with this Indenture
shall be null and void.

Section 2.8  Temporary Debentures.

     Pending the preparation of definitive Debentures, the Company may execute,
and the Trustee shall authenticate and deliver, temporary Debentures (printed,
lithographed, or typewritten). Such temporary Debentures shall be substantially
in the form of the definitive Debentures in lieu of which they are issued, but
with such omissions, insertions and variations as may be appropriate for
temporary Debentures, all as may be determined by the Company. Every temporary
Debenture shall be executed by the Company and be authenticated by the Trustee
upon the same conditions and in substantially the same manner, and with like
effect, as the definitive Debentures. Without

                                      -15-
<PAGE>

unnecessary delay the Company shall execute and shall furnish definitive
Debentures and thereupon any or all temporary Debentures may be surrendered in
exchange therefor (without charge to the holders), at the office or agency of
the Company designated for the purpose in New York, New York or Wilmington,
Delaware and the Trustee shall authenticate and such office or agency shall
deliver in exchange for such temporary Debentures an equal aggregate principal
amount of definitive Debentures, unless the Company advises the Trustee to the
effect that definitive Debentures need not be executed and furnished until
further notice from the Company. Until so exchanged, the temporary Debentures
shall be entitled to the same benefits under this Indenture as definitive
Debentures authenticated and delivered hereunder.

Section 2.9  Mutilated, Destroyed, Lost or Stolen Debentures.

     (a)  In case any temporary or definitive Debenture shall become mutilated
or be destroyed, lost or stolen, the Company (subject to the next succeeding
sentence) shall execute, and upon the Company's request the Trustee (subject as
aforesaid) shall authenticate and deliver, a new Debenture bearing a number not
contemporaneously outstanding, in exchange and substitution for the mutilated
Debenture, or in lieu of and in substitution for the Debenture so destroyed,
lost, stolen or mutilated. In every case the applicant for a substituted
Debenture shall furnish to the Company and the Trustee such security or
indemnity as may be required by them to save each of them harmless, and, in
every case of destruction, loss or theft, the applicant shall also furnish to
the Company and the Trustee evidence to their satisfaction of the destruction,
loss or theft of the applicant's Debenture and of the ownership thereof. The
Trustee may authenticate any such substituted Debenture and deliver the same
upon the written request or authorization of the Chairman, President or any Vice
President and the Treasurer or any Assistant Treasurer of the Company. Upon the
issuance of any substituted Debenture, the Company may require the payment of a
sum sufficient to cover any tax or other governmental charge that may be imposed
in relation thereto and any other expenses (including the fees and expenses of
the Trustee) connected therewith. In case any Debenture that has matured or is
about to mature shall become mutilated or be destroyed, lost or stolen, the
Company may, instead of issuing a substitute Debenture, pay or authorize the
payment of the same (without surrender thereof except in the case of a mutilated
Debenture) if the applicant for such payment shall furnish to the Company and
the Trustee such security or indemnity as they may require to save them
harmless, and, in case of destruction, loss or theft, evidence to the
satisfaction of the Company and the Trustee of the destruction, loss or theft of
such Debenture and of the ownership thereof.

     (b)  Every replacement Debenture issued pursuant to the provisions of this
Section 2.9 shall constitute an additional contractual obligation of the Company
whether or not the mutilated, destroyed, lost or stolen Debenture shall be found
at any time, or be enforceable by anyone, and shall be entitled to all the
benefits of this Indenture equally and proportionately with any and all other
Debentures duly issued hereunder. All Debentures shall be held and owned upon
the express condition that the foregoing provisions are exclusive with respect
to the replacement or payment of mutilated, destroyed, lost or stolen
Debentures, and shall preclude (to the extent lawful) any and all

                                      -16-
<PAGE>

other rights or remedies, notwithstanding any law or statute existing or
hereafter enacted to the contrary with respect to the replacement or payment of
negotiable instruments or other securities without their surrender.

Section 2.10  Cancellation.

     All Debentures surrendered for the purpose of payment, redemption, exchange
or registration of transfer shall, if surrendered to the Company or any paying
agent, be delivered to the Trustee for cancellation, or, if surrendered to the
Trustee, shall be canceled by it, and no Debentures shall be issued in lieu
thereof except as expressly required or permitted by any of the provisions of
this Indenture. On request of the Company at the time of such surrender, the
Trustee shall deliver to the Company canceled Debentures held by the Trustee.
In the absence of such request the Trustee may dispose of canceled Debentures in
accordance with its standard procedures and deliver a certificate of disposition
to the Company. If the Company shall otherwise acquire any of the Debentures,
however, such acquisition shall not operate as a redemption or satisfaction of
the indebtedness represented by such Debentures unless and until the same are
delivered to the Trustee for cancellation.

Section 2.11  Benefit of Indenture.

     Nothing in this Indenture or in the Debentures, express or implied, shall
give or be construed to give to any Person, other than the parties hereto and
the holders of the Debentures (and, with respect to the provisions of Article
XVI, the holders of Senior Indebtedness) any legal or equitable right, remedy or
claim under or in respect of this Indenture, or under any covenant, condition or
provision herein contained; all such covenants, conditions and provisions being
for the sole benefit of the parties hereto and of the holders of the Debentures
(and, with respect to the provisions of Article XVI, the holders of Senior
Indebtedness).

Section 2.12  Authentication Agent.

     (a)  So long as any of the Debentures remain Outstanding there may be an
Authenticating Agent for any or all such Debentures, which the Trustee shall
have the right to appoint. Said Authenticating Agent shall be authorized to act
on behalf of the Trustee to authenticate Debentures issued upon exchange,
transfer or partial redemption thereof, and Debentures so authenticated shall be
entitled to the benefits of this Indenture and shall be valid and obligatory for
all purposes as if authenticated by the Trustee hereunder. All references in
this Indenture to the authentication of Debentures by the Trustee shall be
deemed to include authentication by an Authenticating Agent. Each Authenticating
Agent shall be acceptable to the Company and shall be a corporation that has a
combined capital and surplus, as most recently reported or determined by it,
sufficient under the laws of any jurisdiction under which it is organized or in
which it is doing business to conduct a trust business, and that is otherwise
authorized under such laws to conduct such business and is subject

                                      -17-
<PAGE>

to supervision or examination by federal or state authorities. If at any time
any Authenticating Agent shall cease to be eligible in accordance with these
provisions, it shall resign immediately.

     (b)  Any Authenticating Agent may at any time resign by giving written
notice of resignation to the Trustee and to the Company. The Trustee may at any
time (and upon request by the Company shall) terminate the agency of any
Authenticating Agent by giving written notice of termination to such
Authenticating Agent and to the Company. Upon resignation, termination or
cessation of eligibility of any Authenticating Agent, the Trustee may appoint an
eligible successor Authenticating Agent acceptable to the Company. Any successor
Authenticating Agent, upon acceptance of its appointment hereunder, shall become
vested with all the rights, powers and duties of its predecessor hereunder as if
originally named as an Authenticating Agent pursuant hereto.

                                  ARTICLE III

                           REDEMPTION OF DEBENTURES

Section 3.1  Redemption.

     Subject to the Company having received prior approval of the Federal
Reserve, if then required under the applicable capital guidelines, policies or
regulations of the Federal Reserve, the Company may redeem the Debentures issued
hereunder on and after the dates set forth in and in accordance with the terms
of this Article III.

Section 3.2  Special Event Redemption.

     Subject to the Company having received the prior approval of the Federal
Reserve, if then required under the applicable capital guidelines, policies or
regulations of the Federal Reserve, if a Special Event has occurred and is
continuing, then, notwithstanding Section 3.3(a) but subject to Section 3.3(b),
the Company shall have the right upon not less than 30 days nor more than 60
days notice to the holders of the Debentures to redeem the Debentures, in whole
but not in part, for cash within 180 days following the occurrence of such
Special Event (the "180-Day Period") at a redemption price equal to 100% of the
principal amount to be redeemed plus any accrued and unpaid interest thereon to
the date of such redemption (the "Redemption Price"), provided that if at the
time there is available to the Company the opportunity to eliminate, within the
180-Day Period, a Tax Event by taking some ministerial action (a "Ministerial
Action"), such as filing a form or making an election, or pursuing some other
similar reasonable measure which has no adverse effect on the Company, the Trust
or the holders of the Trust Securities issued by the Trust, the Company shall
pursue such Ministerial Action in lieu of redemption. The Redemption Price shall
be paid prior to 12:00 noon, New York time, on the date of such redemption or
such earlier time as the Company determines, provided that the Company shall
deposit with the Trustee an amount sufficient to pay

                                      -18-
<PAGE>

the Redemption Price by 10:00 a.m., New York time, on the date such Redemption
Price is to be paid.

Section 3.3  Optional Redemption by Company.

     (a)  Subject to the provisions of Section 3.3(b), except as otherwise may
be specified in this Indenture, the Company shall have the right to redeem the
Debentures, in whole or in part, from time to time, on or after ______________,
2005, at a Redemption Price equal to 100% of the principal amount to be redeemed
plus any accrued and unpaid interest thereon to the date of such redemption. Any
redemption pursuant to this Section 3.3(a) shall be made upon not less than 30
days nor more than 60 days notice to the holder of the Debentures, at the
Redemption Price. If the Debentures are only partially redeemed pursuant to this
Section 3.3, the Debentures shall be redeemed pro rata or by lot or in such
other manner as the Trustee shall deem appropriate and fair in its discretion.
The Redemption Price shall be paid prior to 12:00 noon, New York time, on the
date of such redemption or at such earlier time as the Company determines
provided that the Company shall deposit with the Trustee an amount sufficient to
pay the Redemption Price by 10:00 a.m., New York time, on the date such
Redemption Price is to be paid.

     (b)  If a partial redemption of the Debentures would result in the
dequotation or delisting of the Trust Preferred Securities issued by the Trust
from any national securities exchange or other organization on which the Trust
Preferred Securities are then quoted or listed, the Company shall not be
permitted to effect such partial redemption and may only redeem the Debentures
in whole.

Section 3.4  Notice of Redemption.

     (a)  In case the Company shall desire to exercise such right to redeem all
or, as the case may be, a portion of the Debentures in accordance with the right
reserved so to do, the Company shall, or shall cause the Trustee to upon receipt
of 45 days written notice from the Company (which notice shall, in the event of
a partial redemption, include a representation to the effect that such partial
redemption will not result in the delisting of the Trust Preferred Securities as
described in Section 3.3(b) above), give notice of such redemption to holders of
the Debentures to be redeemed by mailing, first class postage prepaid, a notice
of such redemption not less than 30 days and not more than 60 days before the
date fixed for redemption to such holders at their last addresses as they shall
appear upon the Debenture Register unless a shorter period is specified in the
Debentures to be redeemed. Any notice that is mailed in the manner herein
provided shall be conclusively presumed to have been duly given, whether or not
the registered holder receives the notice. In any case, failure duly to give
such notice to the holder of any Debenture designated for redemption in whole or
in part, or any defect in the notice, shall not affect the validity of the
proceedings for the redemption of any other Debentures. In the case of any
redemption of Debentures prior to the expiration of any restriction on such
redemption provided in the terms of such Debentures or elsewhere in this
Indenture, the Company shall furnish the Trustee with an Officers' Certificate
evidencing compliance with any such restriction. Each such notice of redemption
shall specify the

                                      -19-
<PAGE>

date fixed for redemption and the Redemption Price and shall state that payment
of the Redemption Price shall be made at the office or agency of the Company or
at the Corporate Trust Office, upon presentation and surrender of such
Debentures, that interest accrued to the date fixed for redemption shall be paid
as specified in said notice and that from and after said date interest shall
cease to accrue. If less than all the Debentures are to be redeemed, the notice
to the holders of the Debentures shall specify the particular Debentures to be
redeemed. If the Debentures are to be redeemed in part only, the notice shall
state the portion of the principal amount thereof to be redeemed and shall state
that on and after the redemption date, upon surrender of such Debenture, a new
Debenture or Debentures in principal amount equal to the unredeemed portion
thereof shall be issued.

     (b)  If less than all the Debentures are to be redeemed, the Company shall
give the Trustee at least 45 days notice in advance of the date fixed for
redemption as to the aggregate principal amount of Debentures to be redeemed,
and thereupon the Trustee shall select, pro rata or by lot or in such other
manner as it shall deem appropriate and fair in its discretion, the portion or
portions (equal to $10 or any integral multiple thereof) of the Debentures to be
redeemed and shall thereafter promptly notify the Company in writing of the
numbers of the Debentures to be redeemed, in whole or in part. The Company may,
if and whenever it shall so elect pursuant to the terms hereof, by delivery of
instructions signed on its behalf by its Chairman, its President or any Vice
President, instruct the Trustee or any paying agent to call all or any part of
the Debentures for redemption and to give notice of redemption in the manner set
forth in this Section 3.4, such notice to be in the name of the Company or its
own name as the Trustee or such paying agent may deem advisable. In any case in
which notice of redemption is to be given by the Trustee or any such paying
agent, the Company shall deliver or cause to be delivered to, or permit to
remain with, the Trustee or such paying agent, as the case may be, such
Debenture Register, transfer books or other records, or suitable copies or
extracts therefrom, sufficient to enable the Trustee or such paying agent to
give any notice by mail that may be required under the provisions of this
Section 3.4.

Section 3.5  Payment Upon Redemption.

     (a)  If the giving of notice of redemption shall have been completed as
above provided, the Debentures or portions of Debentures to be redeemed
specified in such notice shall become due and payable on the date and at the
place stated in such notice at the applicable Redemption Price, and interest on
such Debentures or portions of Debentures shall cease to accrue on and after the
date fixed for redemption, unless the Company shall default in the payment of
such Redemption Price with respect to any such Debenture or portion thereof. On
presentation and surrender of such Debentures on or after the date fixed for
redemption at the place of payment specified in the notice, said Debentures
shall be paid and redeemed at the Redemption Price (but if the date fixed for
redemption is an interest payment date, the interest installment payable on such
date shall be payable to the registered holder at the close of business on the
applicable record date pursuant to Section 3.3).

     (b)  Upon presentation of any Debenture that is to be redeemed in part
only, the Company shall execute and the Trustee shall authenticate and the
office or agency where the Debenture is

                                      -20-
<PAGE>

presented shall deliver to the holder thereof, at the expense of the Company, a
new Debenture of authorized denomination in principal amount equal to the
unredeemed portion of the Debenture so presented.

Section 3.6  No Sinking Fund.

     The Debentures are not entitled to the benefit of any sinking fund.

                                  ARTICLE IV

                     EXTENSION OF INTEREST PAYMENT PERIOD

Section 4.1  Extension of Interest Payment Period.

     The Company shall have the right, at any time and from time to time during
the term of the Debentures so long as no Event of Default has occurred and is
continuing, to defer payments of interest by extending the interest payment
period of such Debentures for a period not exceeding 20 consecutive quarters
(the "Extended Interest Payment Period"), during which Extended Interest Payment
Period no interest shall be due and payable; provided that no Extended Interest
Payment Period may extend beyond the Maturity Date or end on a date other than
an Interest Payment Date. To the extent permitted by applicable law, interest,
the payment of which has been deferred because of the extension of the interest
payment period pursuant to this Section 4.1, shall bear interest thereon at the
Coupon Rate compounded quarterly for each quarter of the Extended Interest
Payment Period ("Compounded Interest"). At the end of the Extended Interest
Payment Period, the Company shall calculate (and deliver such calculation to the
Trustee) and pay all interest accrued and unpaid on the Debentures, including
any Additional Interest and Compounded Interest (together, "Deferred Interest")
that shall be payable to the holders of the Debentures in whose names the
Debentures are registered in the Debenture Register on the first record date
after the end of the Extended Interest Payment Period. Before the termination of
any Extended Interest Payment Period, the Company may further extend such period
so long as no Event of Default has occurred and is continuing, provided that
such period together with all such further extensions thereof shall not exceed
20 consecutive quarters, or extend beyond the Maturity Date of the Debentures or
end on a date other than an Interest Payment Date. Upon the termination of any
Extended Interest Payment Period and upon the payment of all Deferred Interest
then due, the Company may commence a new Extended Interest Payment Period,
subject to the foregoing requirements. No interest shall be due and payable
during an Extended Interest Payment Period, except at the end thereof, but the
Company may prepay at any time all or any portion of the interest accrued during
an Extended Interest Payment Period.

                                      -21-
<PAGE>

Section 4.2  Notice of Extension.

     (a)  If the Property Trustee is the only registered holder of the
Debentures at the time the Company selects an Extended Interest Payment Period,
the Company shall give written notice to the Administrative Trustees, the
Property Trustee and the Trustee of its selection of such Extended Interest
Payment Period two Business Days before the earlier of (i) the next succeeding
date on which Distributions on the Trust Securities issued by the Trust are
payable; or (ii) the date the Trust is required to give notice of the record
date, or the date such Distributions are payable, to the OTC Bulletin Board or
other applicable self-regulatory organization or to holders of the Trust
Preferred Securities issued by the Trust, but in any event at least one Business
Day before such record date.

     (b)  If the Property Trustee is not the only holder of the Debentures at
the time the Company selects an Extended Interest Payment Period, the Company
shall give the holders of the Debentures and the Trustee written notice of its
selection of such Extended Interest Payment Period at least two Business Days
before the earlier of (i) the next succeeding Interest Payment Date; or (ii) the
date the Company is required to give notice of the record or payment date of
such interest payment to the OTC Bulletin Board or other applicable self-
regulatory organization or to holders of the Debentures.

     (c)  The quarter in which any notice is given pursuant to paragraphs (a) or
(b) of this Section 4.2 shall be counted as one of the 20 quarters permitted in
the maximum Extended Interest Payment Period permitted under Section 4.1.

Section 4.3  Limitation on Transactions.

     If (i) the Company shall exercise its right to defer payment of interest as
provided in Section 4.1; or (ii) there shall have occurred and be continuing any
Event of Default, then (a) the Company shall not, and will not permit any
Subsidiary to, declare or pay any dividend on, make any distributions with
respect to, or redeem, purchase, acquire or make a liquidation payment with
respect to, any of its capital stock (other than (1) as a result of a
reclassification of its capital stock for another class of its capital stock or
(2) declarations or payments of dividends or distributions on capital stock by a
Subsidiary of the Company to the Company); (b) the Company shall not, and will
not permit any Subsidiary to, make any payment of interest, principal or
premium, if any, or repay, repurchase or redeem any debt securities issued by
the Company which rank pari passu with or junior to the Debentures; (c) the
Company shall not make any guarantee payment with respect to any guarantee by
the Company of the debt securities of any Subsidiary of the Company if such
guarantee ranks pari passu with or junior to the Debentures; provided, however,
that notwithstanding the foregoing the Company may make payments pursuant to its
obligations under the Trust Preferred Securities Guarantee; and (d) the Company
shall not redeem, purchase or acquire less than all of the outstanding
Debentures or any of the Trust Preferred Securities.

                                      -22-
<PAGE>

                                   ARTICLE V

                      PARTICULAR COVENANTS OF THE COMPANY

Section 5.1  Payment of Principal and Interest.

     The Company shall duly and punctually pay or cause to be paid the principal
of and interest on the Debentures at the time and place and in the manner
provided herein.

Section 5.2  Maintenance of Agency.

     So long as any of the Debentures remain Outstanding, the Company shall
maintain, or shall cause to be maintained, an office or agency in New York, New
York or Wilmington, Delaware, and at such other location or locations as may be
designated as provided in this Section 5.2, where (i) Debentures may be
presented for payment; (ii) Debentures may be presented as hereinabove
authorized for registration of transfer and exchange; and (iii) notices and
demands to or upon the Company in respect of the Debentures and this Indenture
may be given or served, such designation to continue with respect to such office
or agency until the Company shall, by written notice signed by its President or
an Executive Vice President and delivered to the Trustee, designate some other
office or agency for such purposes or any of them. If at any time the Company
shall fail to maintain any such required office or agency or shall fail to
furnish the Trustee with the address thereof, such presentations, notices and
demands may be made or served at the Corporate Trust Office of the Trustee, and
the Company hereby appoints the Trustee as its agent to receive all such
presentations, notices and demands.  In addition to any such office or agency,
the Company may from time to time designate one or more offices or agencies
outside of New York, New York or Wilmington, Delaware where the Debentures may
be presented for registration or transfer and for exchange in the manner
provided herein, and the Company may from time to time rescind such designation
as the Company may deem desirable or expedient; provided, however, that no such
designation or rescission shall in any manner relieve the Company of its
obligation to maintain any such office or agency in New York, New York or
Wilmington, Delaware for the purposes above mentioned.  The Company shall give
the Trustee prompt written notice of any such designation or rescission thereof.

Section 5.3  Paying Agents.

     (a)  The Company shall be the initial paying agent. If the Company shall
appoint one or more paying agents for the Debentures, other than the Trustee,
the Company shall cause each such paying agent to execute and deliver to the
Trustee an instrument in which such agent shall agree with the Trustee, subject
to the provisions of this Section 5.3:

          (i)  that it shall hold all sums held by it as such agent for the
               payment of the principal of or interest on the Debentures
               (whether such sums have been paid

                                      -23-
<PAGE>

                 to it by the Company or by any other obligor of such
                 Debentures) in trust for the benefit of the Persons entitled
                 thereto;

          (ii)   that it shall give the Trustee notice of any failure by the
                 Company (or by any other obligor of such Debentures) to make
                 any payment of the principal of or interest on the Debentures
                 when the same shall be due and payable;

          (iii)  that it shall, at any time during the continuance of any
                 failure referred to in the preceding paragraph (a)(ii) above,
                 upon the written request of the Trustee, forthwith pay to the
                 Trustee all sums so held in trust by such paying agent; and

          (iv)   that it shall perform all other duties of paying agent as set
                 forth in this Indenture.

     (b)  If the Company shall act as its own paying agent with respect to the
Debentures, it shall on or before each due date of the principal of or interest
on such Debentures, set aside, segregate and hold in trust for the benefit of
the Persons entitled thereto a sum sufficient to pay such principal or interest
so becoming due on Debentures until such sums shall be paid to such Persons or
otherwise disposed of as herein provided and shall promptly notify the Trustee
of such action, or any failure (by it or any other obligor on such Debentures)
to take such action. Whenever the Company shall have one or more paying agents
for the Debentures, it shall, prior to each due date of the principal of or
interest on any Debentures, deposit with the paying agent a sum sufficient to
pay the principal or interest so becoming due, such sum to be held in trust for
the benefit of the Persons entitled to such principal or interest, and (unless
such paying agent is the Trustee) the Company shall promptly notify the Trustee
of this action or failure so to act.

     (c)  Notwithstanding anything in this Section 5.3 to the contrary, (i) the
agreement to hold sums in trust as provided in this Section 5.3 is subject to
the provisions of Section 13.3 and 13.4; and (ii) the Company may at any time,
for the purpose of obtaining the satisfaction and discharge of this Indenture or
for any other purpose, pay, or direct any paying agent to pay, to the Trustee
all sums held in trust by the Company or such paying agent, such sums to be held
by the Trustee upon the same terms and conditions as those upon which such sums
were held by the Company or such paying agent; and, upon such payment by any
paying agent to the Trustee, such paying agent shall be released from all
further liability with respect to such money.

Section 5.4  Appointment to Fill Vacancy in Office of Trustee.

     The Company, whenever necessary to avoid or fill a vacancy in the office of
Trustee, shall appoint, in the manner provided in Section 9.10, a Trustee, so
that there shall at all times be a Trustee hereunder.

                                      -24-
<PAGE>

Section 5.5  Compliance with Consolidation Provisions.

     The Company shall not, while any of the Debentures remain outstanding,
consolidate with, or merge into, or merge into itself, or sell or convey all or
substantially all of its property to any other company unless the provisions of
Article XII hereof are complied with.

Section 5.6  Limitation on Transactions.

     If Debentures are issued to the Trust or a Trustee of the Trust in
connection with the issuance of Trust Securities by the Trust and (i) there
shall have occurred any event that would constitute an Event of Default; (ii)
the Company shall be in default with respect to any of its obligations under the
Trust Preferred Securities Guarantee relating to the Trust; or (iii) the Company
shall have given notice of its election to defer payments of interest on such
Debentures by extending the interest payment period as provided in this
Indenture and such period, or any extension thereof, shall be continuing, then
(a) the Company shall not, and will not permit any Subsidiary to, declare or pay
any dividend on, make any distributions with respect to, or redeem, purchase,
acquire or make a liquidation payment with respect to, any of its capital stock
(other than (1) as a result of a reclassification of its capital stock or (2)
declarations or payments of dividends or distributions on capital stock by a
Subsidiary of the Company to the Company); (b) the Company shall not, and will
not permit any Subsidiary to, make any payment of interest, principal or
premium, if any, or repay, repurchase or redeem any debt securities issued by
the Company which rank pari passu with or junior to the Debentures; (c) the
Company shall not make any guarantee payments with respect to any guarantee by
the Company of the debt securities of any Subsidiary of the Company if such
guarantee ranks pari passu with or junior in interest to the Debentures;
provided, however, that the Company may make payments pursuant to its
obligations under the Trust Preferred Securities Guarantee; and (d) the Company
shall not redeem, purchase or acquire less than all of the outstanding
Debentures or any of the Trust Preferred Securities.

Section 5.7  Covenants as to the Trust.

     For so long as such Trust Securities of the Trust remain outstanding, the
Company shall (i) maintain 100% direct or indirect ownership of the Common
Securities of the Trust; provided, however, that any permitted successor of the
Company under this Indenture may succeed to the Company's ownership of the
Common Securities; (ii) not voluntarily terminate, wind up or liquidate the
Trust, except upon prior approval of the Federal Reserve if then so required
under applicable capital guidelines, policies or regulations of the Federal
Reserve and use its reasonable efforts to cause the Trust (a) to remain a
business trust (and to avoid involuntary termination, winding up or
liquidation), except in connection with a distribution of Debentures, the
redemption of all of the Trust Securities of the Trust or certain mergers,
consolidations or amalgamations, each as permitted by the Trust Agreement; and
(b) to otherwise continue not to be treated as an association taxable as a
corporation or partnership for United States federal income tax purposes; and
(iii) use its reasonable efforts to cause each holder of Trust Securities to be
treated as owning an individual

                                      -25-
<PAGE>

beneficial interest in the Debentures. In connection with the distribution of
the Debentures to the holders of the Trust Preferred Securities issued by the
Trust upon a Dissolution Event, the Company shall use its best efforts to have
such Debentures quoted on the OTC Bulletin Board or listed on such exchange or
self regulatory organization as the Trust Preferred Securities are then listed.

Section 5.8  Covenants as to Purchases.

     Prior to ___________, 2005, the Company shall not purchase any Debentures,
in whole or in part, from the Trust.

Section 5.9  Waiver of Usury, Stay or Extension Laws.

     The Company shall not at any time insist upon, or plead, or in any manner
whatsoever claim or take the benefit or advantage of, any usury, stay or
extension law wherever enacted, now or at any time hereafter in force, which may
affect the covenants or the performances of this Indenture, and the Company (to
the extent that it may lawfully do so) hereby expressly waives all benefit or
advantage of any such law, and covenants that it will not hinder, delay or
impede the execution of any power herein granted to the Trustee, but will suffer
and permit the execution of every such power as though no such law had been
enacted.

                                  ARTICLE VI

                      DEBENTUREHOLDERS' LISTS AND REPORTS
                        BY THE COMPANY AND THE TRUSTEE

 Section 6.1  Company to Furnish Trustee Names and Addresses of
              Debentureholders.

          The Company shall furnish or cause to be furnished to the Trustee (a)
on a quarterly basis on each regular record date (as described in Section 2.5) a
list, in such form as the Trustee may reasonably require, of the names and
addresses of the holders of the Debentures as of such regular record date,
provided that the Company shall not be obligated to furnish or cause to furnish
such list at any time that the list shall not differ in any respect from the
most recent list furnished to the Trustee by the Company (in the event the
Company fails to provide such list on a quarterly basis, the Trustee shall be
entitled to rely on the most recent list provided by the Company); and (b) at
such other times as the Trustee may request in writing within 30 days after the
receipt by the Company of any such request, a list of similar form and content
as of a date not more than 15 days prior to the time such list is furnished;
provided, however, that, in either case, no such list need be furnished if the
Trustee shall be the Debenture Registrar.

                                      -26-
<PAGE>

Section 6.2  Preservation of Information Communications with Debentureholders.

     (a)  The Trustee shall preserve, in as current a form as is reasonably
practicable, all information as to the names and addresses of the holders of
Debentures contained in the most recent list furnished to it as provided in
Section 6.1 and as to the names and addresses of holders of Debentures received
by the Trustee in its capacity as registrar for the Debentures (if acting in
such capacity).

     (b)  The Trustee may destroy any list furnished to it as provided in
Section 6.1 upon receipt of a new list so furnished.

     (c)  Debentureholders may communicate as provided in Section 312(b) of the
Trust Indenture Act with other Debentureholders with respect to their rights
under this Indenture or under the Debentures.

Section 6.3  Reports by the Company.

     (a)  The Company covenants and agrees to file with the Trustee, within 15
days after the Company is required to file the same with the Commission, copies
of the annual reports and of the information, documents and other reports (or
copies of such portions of any of the foregoing as the Commission may from time
to time by rules and regulations prescribe) that the Company may be required to
file with the Commission pursuant to Section 13 or Section 15(d) of the Exchange
Act; or, if the Company is not required to file information, documents or
reports pursuant to either of such sections, then to file with the Trustee and
the Commission, in accordance with the rules and regulations prescribed from
time to time by the Commission, such of the supplementary and periodic
information, documents and reports that may be required pursuant to Section 13
of the Exchange Act in respect of a security listed and registered on a national
securities exchange or the applicable self-regulatory organization as may be
prescribed from time to time in such rules and regulations.

     (b)  The Company covenants and agrees to file with the Trustee and the
Commission, in accordance with the rules and regulations prescribed from time to
time by the Commission, such additional information, documents and reports with
respect to compliance by the Company with the conditions and covenants provided
for in this Indenture as may be required from time to time by such rules and
regulations, including Section 314(a)(4) of the Trust Indenture Act.

     (c)  The Company covenants and agrees to transmit by mail, first class
postage prepaid, or the reputable over-night delivery service that provides for
evidence of receipt, to the Debentureholders, as their names and addresses
appear upon the Debenture Register, within 30 days after the filing thereof with
the Trustee, such summaries of any information, documents and reports required
to be filed by the Company pursuant to subsections (a) and (b) of this Section
6.3 as may be required by rules and regulations prescribed from time to time by
the Commission.

                                      -27-
<PAGE>

Section 6.4  Reports by the Trustee.

     (a)  On or before July 15 in each year in which any of the Debentures are
Outstanding, the Trustee shall transmit by mail, first class postage prepaid, to
the Debentureholders, as their names and addresses appear upon the Debenture
Register, a brief report dated as of the preceding May 15, if and to the extent
required under Section 313(a) of the Trust Indenture Act.

     (b)  The Trustee shall comply with Sections 313(b) and 313(c) of the Trust
Indenture Act.

     (c)  A copy of each such report shall, at the time of such transmission to
Debentureholders, be filed by the Trustee with the Company, with each stock
exchange or applicable self-regulatory organization upon which any Debentures
are listed (if so listed) and also with the Commission. The Company agrees to
notify the Trustee when any Debentures become listed on any stock exchange
applicable self-regulatory organization.

                                  ARTICLE VII

                 REMEDIES OF THE TRUSTEE AND DEBENTUREHOLDERS
                              ON EVENT OF DEFAULT

Section 7.1  Events of Default.

     (a)  Whenever used herein with respect to the Debentures, "Event of
Default" means any one or more of the following events that has occurred and is
continuing:

          (i)   the Company defaults in the payment of any installment of
                interest upon any of the Debentures, as and when the same shall
                become due and payable, and continuance of such default for a
                period of 30 days; provided, however, that a valid extension of
                an interest payment period by the Company in accordance with the
                terms of this Indenture shall not constitute a default in the
                payment of interest for this purpose;

          (ii)  the Company defaults in the payment of the principal on the
                Debentures as and when the same shall become due and payable
                whether at maturity, upon redemption, by declaration or
                otherwise;

          (iii) the Company fails to observe or perform any other of its
                covenants or agreements with respect to the Debentures for a
                period of 90 days after the date on which written notice of such
                failure, requiring the same to be remedied and stating that such
                notice is a "Notice of Default" hereunder, shall have been given
                to the Company by the Trustee, by registered or certified

                                      -28-
<PAGE>

                mail, or to the Company and the Trustee by the holders of at
                least 25% in principal amount of the Debentures at the time
                Outstanding;

          (iv)  the Company pursuant to or within the meaning of any Bankruptcy
                Law (1) commences a voluntary case; (2) consents to the entry of
                an order for relief against it in an involuntary case; (3)
                consents to the appointment of a Custodian of it or for all or
                substantially all of its property; or (4) makes a general
                assignment for the benefit of its creditors;

          (v)   a court of competent jurisdiction enters an order under any
                Bankruptcy Law that (1) is for relief against the Company in an
                involuntary case; (2) appoints a Custodian of the Company for
                all or substantially all of its property; or (3) orders the
                liquidation of the Company, and the order or decree remains
                unstayed and in effect for 90 days; or

          (vi)  the Trust shall have voluntarily or involuntarily dissolved,
                wound-up its business or otherwise terminated its existence
                except in connection with (1) the distribution of Debentures to
                holders of Trust Securities in liquidation of their interests in
                the Trust; (2) the redemption of all of the outstanding Trust
                Securities of the Trust; or (3) certain mergers, consolidations
                or amalgamations, each as permitted by the Trust Agreement.

     (b)  In each and every such case, unless the principal of all the
Debentures shall have already become due and payable, either the Trustee or the
holders of not less than 25% in aggregate principal amount of the Debentures
then Outstanding hereunder, by notice in writing to the Company (and to the
Trustee if given by such Debentureholders) may declare the principal of all the
Debentures to be due and payable immediately, and upon any such declaration the
same shall become and shall be immediately due and payable, notwithstanding
anything contained in this Indenture or in the Debentures.

     (c)  At any time after the principal of the Debentures shall have been so
declared due and payable, and before any judgment or decree for the payment of
the moneys due shall have been obtained or entered as hereinafter provided, the
holders of a majority in aggregate principal amount of the Debentures then
Outstanding hereunder, by written notice to the Company and the Trustee, may
rescind and annul such declaration and its consequences if: (i) the Company has
paid or deposited with the Trustee a sum sufficient to pay all matured
installments of interest upon all the Debentures and the principal of any and
all Debentures that shall have become due otherwise than by acceleration (with
interest upon such principal, and, to the extent that such payment is
enforceable under applicable law, upon overdue installments of interest, at the
rate per annum expressed in the Debentures to the date of such payment or
deposit) and the amount payable to the Trustee under Section 9.6; and (ii) any
and all Events of Default under this Indenture, other than the nonpayment of
principal on Debentures that shall not have become due by their terms, shall
have been remedied

                                      -29-
<PAGE>

or waived as provided in Section 7.6. No such rescission and annulment shall
extend to or shall affect any subsequent default or impair any right consequent
thereon.

     (d)  In case the Trustee shall have proceeded to enforce any right with
respect to Debentures under this Indenture and such proceedings shall have been
discontinued or abandoned because of such rescission or annulment or for any
other reason or shall have been determined adversely to the Trustee, then and in
every such case the Company and the Trustee shall be restored respectively to
their former positions and rights hereunder, and all rights, remedies and powers
of the Company and the Trustee shall continue as though no such proceedings had
been taken.

Section 7.2  Collection of Indebtedness and Suits for Enforcement by Trustee.

     (a)  The Company covenants that (i) in case it shall default in the payment
of any installment of interest on any of the Debentures, and such default shall
have continued for a period of 90 Business Days; or (ii) in case it shall
default in the payment of the principal of any of the Debentures when the same
shall have become due and payable, whether upon maturity of the Debentures or
upon redemption or upon declaration or otherwise, then, upon demand of the
Trustee, the Company shall pay to the Trustee, for the benefit of the holders of
the Debentures, the whole amount that then shall have been due and payable on
all such Debentures for principal or interest, or both, as the case may be, with
interest upon the overdue principal and (to the extent that payment of such
interest is enforceable under applicable law and, if the Debentures are held by
the Trust or a trustee of the Trust, without duplication of any other amounts
paid by the Trust or trustee in respect thereof) upon overdue installments of
interest at the rate per annum expressed in the Debentures; and, in addition
thereto, such further amount as shall be sufficient to cover the costs and
expenses of collection, and the amount payable to the Trustee under Section 9.7.

     (b)  If the Company shall fail to pay such amounts forthwith upon such
demand, the Trustee, in its own name and as trustee of an express trust, shall
be entitled and empowered to institute any action or proceedings at law or in
equity for the collection of the sums so due and unpaid, and may prosecute any
such action or proceeding to judgment or final decree, and may enforce any such
judgment or final decree against the Company or other obligor upon the
Debentures and collect the moneys adjudged or decreed to be payable in the
manner provided by law out of the property of the Company or other obligor upon
the Debentures, wherever situated.

     (c)  In case of any receivership, insolvency, liquidation, bankruptcy,
reorganization, readjustment, arrangement, composition or judicial proceedings
affecting the Company or the creditors or property of either, the Trustee shall
have power to intervene in such proceedings and take any action therein that may
be permitted by the court and shall (except as may be otherwise provided by law)
be entitled to file such proofs of claim and other papers and documents as may
be necessary or advisable in order to have the claims of the Trustee and of the
holders of the Debentures allowed for the entire amount due and payable by the
Company under this Indenture at the date of institution of such proceedings and
for any additional amount that may become due and payable by

                                      -30-
<PAGE>

the Company after such date, and to collect and receive any moneys or other
property payable or deliverable on any such claim, and to distribute the same
after the deduction of the amount payable to the Trustee under Section 9.7; and
any receiver, assignee or trustee in bankruptcy or reorganization is hereby
authorized by each of the holders of the Debentures to make such payments to the
Trustee, and, in the event that the Trustee shall consent to the making of such
payments directly to such Debentureholders, to pay to the Trustee any amount due
it under Section 9.7.

     (d)  All rights of action and of asserting claims under this Indenture, or
under any of the terms established with respect to Debentures, may be enforced
by the Trustee without the possession of any of such Debentures, or the
production thereof at any trial or other proceeding relative thereto, and any
such suit or proceeding instituted by the Trustee shall be brought in its own
name as trustee of an express trust, and any recovery of judgment shall, after
provision for payment to the Trustee of any amounts due under Section 9.7, be
for the ratable benefit of the holders of the Debentures. In case of an Event of
Default hereunder, the Trustee may in its discretion proceed to protect and
enforce the rights vested in it by this Indenture by such appropriate judicial
proceedings as the Trustee shall deem most effectual to protect and enforce any
of such rights, either at law or in equity or in bankruptcy or otherwise,
whether for the specific enforcement of any covenant or agreement contained in
this Indenture or in aid of the exercise of any power granted in this Indenture,
or to enforce any other legal or equitable right vested in the Trustee by this
Indenture or by law.  Nothing contained herein shall be deemed to authorize the
Trustee to authorize or consent to or accept or adopt on behalf of any
Debentureholder any plan of reorganization, arrangement, adjustment or
composition affecting the Debentures or the rights of any holder thereof or to
authorize the Trustee to vote in respect of the claim of any Debentureholder in
any such proceeding.

Section 7.3  Application of Moneys Collected.

     Any moneys or other assets collected by the Trustee pursuant to this
Article VII with respect to the Debentures shall be applied in the following
order, at the date or dates fixed by the Trustee and, in case of the
distribution of such moneys or other assets on account of principal or interest,
upon presentation of the Debentures, and notation thereon the payment, if only
partially paid, and upon surrender thereof if fully paid:

     FIRST:  To the payment of costs and expenses of collection and of all
amounts payable to the Trustee under Section 9.6;

     SECOND: To the payment of all Senior Indebtedness of the Company if and to
the extent required by Article XVI; and

     THIRD:  To the payment of the amounts then due and unpaid upon the
Debentures for principal and interest, in respect of which or for the benefit of
which such money has been collected, ratably, without preference or priority of
any kind, according to the amounts due and payable on such Debentures for
principal and interest, respectively.

                                      -31-
<PAGE>

Section 7.4  Limitation on Suits.

     (a)  Except as set forth herein, no holder of any Debenture shall have any
right by virtue or by availing of any provision of this Indenture to institute
any suit, action or proceeding in equity or at law upon or under or with respect
to this Indenture or for the appointment of a receiver or trustee, or for any
other remedy hereunder, unless (i) such holder previously shall have given to
the Trustee written notice of an Event of Default and of the continuance thereof
with respect to the Debentures specifying such Event of Default, as hereinbefore
provided; (ii) the holders of not less than 25% in aggregate principal amount of
the Debentures then Outstanding shall have made written request upon the Trustee
to institute such action, suit or proceeding in its own name as trustee
hereunder; (iii) such holder or holders shall have offered to the Trustee such
reasonable indemnity as it may require against the costs, expenses and
liabilities to be incurred therein or thereby; (iv) the Trustee for 60 days
after its receipt of such notice, request and offer of indemnity, shall have
failed to institute any such action, suit or proceeding; and (v) during such 60
day period, the holders of a majority in principal amount of the Debentures do
not give the Trustee a direction inconsistent with the request.

     (b)  Notwithstanding anything contained herein to the contrary or any other
provisions of this Indenture, the right of any holder of the Debentures to
receive payment of the principal of and interest on the Debentures, as therein
provided, on or after the respective due dates expressed in such Debenture (or
in the case of redemption, on the redemption date), or to institute suit for the
enforcement of any such payment on or after such respective dates or redemption
date, shall not be impaired or affected without the consent of such holder and
by accepting a Debenture hereunder it is expressly understood, intended and
covenanted by the taker and holder of every Debenture with every other such
taker and holder and the Trustee, that no one or more holders of Debentures
shall have any right in any manner whatsoever by virtue or by availing of any
provision of this Indenture to affect, disturb or prejudice the rights of the
holders of any other of such Debentures, or to obtain or seek to obtain priority
over or preference to any other such holder, or to enforce any right under this
Indenture, except in the manner herein provided and for the equal, ratable and
common benefit of all holders of Debentures. For the protection and enforcement
of the provisions of this Section 7.4, each and every Debentureholder and the
Trustee shall be entitled to such relief as can be given either at law or in
equity.

Section 7.5  Rights and Remedies Cumulative; Delay or Omission not Waiver.

     (a)  Except as otherwise provided in Section 2.9, all powers and remedies
given by this Article VII to the Trustee or to the Debentureholders shall, to
the extent permitted by law, be deemed cumulative and not exclusive of any other
powers and remedies available to the Trustee or the holders of the Debentures,
by judicial proceedings or otherwise, to enforce the performance or observance
of the covenants and agreements contained in this Indenture or otherwise
established with respect to such Debentures.

                                      -32-
<PAGE>

     (b)  No delay or omission of the Trustee or of any holder of any of the
Debentures to exercise any right or power accruing upon any Event of Default
occurring and continuing as aforesaid shall impair any such right or power, or
shall be construed to be a waiver of any such default or on acquiescence
therein; and, subject to the provisions of Section 7.4, every power and remedy
given by this Article VII or by law to the Trustee or the Debentureholders may
be exercised from time to time, and as often as shall be deemed expedient, by
the Trustee or by the Debentureholders.

Section 7.6  Control by Debentureholders.

     The holders of a majority in aggregate principal amount of the Debentures
at the time Outstanding, determined in accordance with Section 10.4, shall have
the right to direct the time, method and place of conducting any proceeding for
any remedy available to the Trustee, or exercising any trust or power conferred
on the Trustee; provided, however, that such direction shall not be in conflict
with any rule of law or with this Indenture. Subject to the provisions of
Section 9.1, the Trustee shall have the right to decline to follow any such
direction if the Trustee in good faith shall, by a Responsible Officer or
Officers of the Trustee, determine that the proceeding so directed would involve
the Trustee in personal liability.  The holders of a majority in aggregate
principal amount of the Debentures at the time Outstanding affected thereby,
determined in accordance with Section 10.4, may on behalf of the holders of all
of the Debentures waive any past default in the performance of any of the
covenants contained herein and its consequences, except (i) a default in the
payment of the principal of or interest on, any of the Debentures as and when
the same shall become due by the terms of such Debentures otherwise than by
acceleration (unless such default has been cured and a sum sufficient to pay all
matured installments of interest and principal has been deposited with the
Trustee (in accordance with Section 7.1(c)); (ii) a default in the covenants
contained in Section 5.6; or (iii) in respect of a covenant or provision hereof
which cannot be modified or amended without the consent of the holder of each
Outstanding Debenture affected; provided, however, that if the Debentures are
held by the Trust or a trustee of the Trust, such waiver or modification to such
waiver shall not be effective until the holders of a majority in liquidation
preference of Trust Securities of the Trust shall have consented to such waiver
or modification to such waiver; provided further, that if the consent of the
holder of each Outstanding Debenture is required, such waiver shall not be
effective until each holder of the Trust Securities of the Trust shall have
consented to such waiver. Upon any such waiver, the default covered thereby
shall be deemed to be cured for all purposes of this Indenture and the Company,
the Trustee and the holders of the Debentures shall be restored to their former
positions and rights hereunder, respectively; but no such waiver shall extend to
any subsequent or other default or impair any right consequent thereon.

Section 7.7  Undertaking to Pay Costs.

     All parties to this Indenture agree, and each holder of any Debentures by
such holder's acceptance thereof shall be deemed to have agreed, that any court
may in its discretion require, in any suit for the enforcement of any right or
remedy under this Indenture, or in any suit against the

                                      -33-
<PAGE>

Trustee for any action taken or omitted by it as Trustee, the filing by any
party litigant in such suit of an undertaking to pay the costs of such suit, and
that such court may in its discretion assess reasonable costs, including
reasonable attorneys' fees, against any party litigant in such suit, having due
regard to the merits and good faith of the claims or defenses made by such party
litigant; but the provisions of this Section 7.7 shall not apply to any suit
instituted by the Trustee, to any suit instituted by any Debentureholder, or
group of Debentureholders holding more than 10% in aggregate principal amount of
the Outstanding Debentures, or to any suit instituted by any Debentureholder for
the enforcement of the payment of the principal of or interest on the
Debentures, on or after the respective due dates expressed in such Debenture or
established pursuant to this Indenture.

Section 7.8  Direct Action; Right of Set-Off.

     In the event that an Event of Default has occurred and is continuing and
such event is attributable to the failure of the Company to pay interest on or
principal of the Debentures on the payment date on which such payment is due and
payable, then a holder of Trust Preferred Securities may institute a legal
proceeding directly against the Company for enforcement of payment to such
holder of the principal of or interest on such Debentures having a principal
amount equal to the aggregate Liquidation Amount of the Trust Preferred
Securities of such holders (a "Direct Action"). In connection with such Direct
Action, the Company will have a right of set-off under this Indenture to the
extent of any payment made by the Company to such holder of the Trust Preferred
Securities with respect to such Direct Action.

                                 ARTICLE VIII

                     FORM OF DEBENTURE AND ORIGINAL ISSUE

Section 8.1  Form of Debenture.

     The Debenture and the Trustee's Certificate of Authentication to be
endorsed thereon are to be substantially in the forms contained as Exhibit A to
this Indenture, attached hereto and incorporated herein by reference.

Section 8.2  Original Issue of Debentures.

     Debentures in the aggregate principal amount of $___________, may, upon
execution of this Indenture, be executed by the Company and delivered to the
Trustee for authentication. The Trustee shall thereupon authenticate and deliver
said Debentures to or upon the written order of the Company, signed by its
President, or any Vice President and its Treasurer or an Assistant Treasurer,
without any further action by the Company.

                                      -34-
<PAGE>

                                  ARTICLE IX

                            CONCERNING THE TRUSTEE

Section 9.1  Certain Duties and Responsibilities of the Trustee.

     (a)  The Trustee, prior to the occurrence of an Event of Default and after
the curing of all Events of Default that may have occurred, shall undertake to
perform with respect to the Debentures such duties and only such duties as are
specifically set forth in this Indenture, and no implied covenants shall be read
into this Indenture against the Trustee. In case an Event of Default has
occurred that has not been cured or waived, the Trustee shall exercise such of
the rights and powers vested in it by this Indenture, and use the same degree of
care and skill in their exercise, as a prudent Person would exercise or use
under the circumstances in the conduct of its own affairs.

     (b)  No provision of this Indenture shall be construed to relieve the
Trustee from liability for its own negligent action, its own negligent failure
to act, or its own willful misconduct, except that:

          (i)  prior to the occurrence of an Event of Default and after the
               curing or waiving of all such Events of Default that may have
               occurred:

               (1)  the duties and obligations of the Trustee shall with respect
                    to the Debentures be determined solely by the express
                    provisions of this Indenture, and the Trustee shall not be
                    liable with respect to the Debentures except for the
                    performance of such duties and obligations as are
                    specifically set forth in this Indenture, and no implied
                    covenants or obligations shall be read into this Indenture
                    against the Trustee; and

               (2)  in the absence of bad faith on the part of the Trustee, the
                    Trustee may with respect to the Debentures conclusively
                    rely, as to the truth of the statements and the correctness
                    of the opinions expressed therein, upon any certificates or
                    opinions furnished to the Trustee and conforming to the
                    requirements of this Indenture; but in the case of any such
                    certificates or opinions that by any provision hereof are
                    specifically required to be furnished to the Trustee, the
                    Trustee shall be under a duty to examine the same to
                    determine whether or not they conform to the requirements of
                    this Indenture;

          (ii) the Trustee shall not be liable for any error of judgment made in
               good faith by a Responsible Officer or Responsible Officers of
               the Trustee, unless it

                                      -35-
<PAGE>

                shall be proved that the Trustee was
                negligent in  ascertaining the pertinent facts;

          (iii) the Trustee shall not be liable with respect to any action taken
                or omitted to be taken by it in good faith in accordance with
                the direction of the holders of not less than a majority in
                principal amount of the Debentures at the time Outstanding
                relating to the time, method and place of conducting any
                proceeding for any remedy available to the Trustee, or
                exercising any trust or power conferred upon the Trustee under
                this Indenture with respect to the Debentures; and

          (iv)  none of the provisions contained in this Indenture shall require
                the Trustee to expend or risk its own funds or otherwise incur
                personal financial liability in the performance of any of its
                duties or in the exercise of any of its rights or powers, if
                there is reasonable ground for believing that the repayment of
                such funds or liability is not reasonably assured to it under
                the terms of this Indenture or adequate indemnity against such
                risk is not reasonably assured to it.

Section 9.2  Notice of Defaults.

     Within five business days after actual knowledge by a Responsible Officer
of the Trustee of the occurrence of any default hereunder with respect to the
Debentures, the Trustee shall transmit by mail to all holders of the Debentures,
as their names and addresses appear in the Debenture Register, notice of such
default, unless such default shall have been cured or waived; provided, however,
that, except in the case default in the payment of the principal or interest
(including any Additional Interest) on any Debenture, the Trustee shall be
protected in withholding such notice if and so long as the board of directors,
the executive committee or a trust committee of the directors and/or Responsible
Officers of the Trustee determines in good faith that the withholding of such
notice is in the interests of the holders of such Debentures; and provided,
further, that in the case of any default of the character specified in Section
7.1(a)(iii), no such notice to holders of Debentures need be sent until at least
30 days after the occurrence thereof. For the purposes of this Section 9.2, the
term "default" means any event which is, or after notice or lapse of time or
both, would become, an Event of Default with respect to the Debentures.

Section 9.3  Certain Rights of Trustee.

     Except as otherwise provided in Section 9.1:

     (a)  The Trustee may rely and shall be protected in acting or refraining
from acting upon any resolution, certificate, statement, instrument, opinion,
report, notice, request, consent, order,

                                      -36-
<PAGE>

approval, bond, security or other paper or document believed by it to be genuine
and to have been signed or presented by the proper party or parties;

     (b)  Any request, direction, order or demand of the Company mentioned
herein shall be sufficiently evidenced by a Board Resolution or an instrument
signed in the name of the Company by its President or any Vice President and by
the Secretary or an Assistant Secretary or the Treasurer or an Assistant
Treasurer thereof (unless other evidence in respect thereof is specifically
prescribed herein);

     (c)  The Trustee shall not be deemed to have knowledge of a default or an
Event of Default, other than an Event of Default specified in Section 7.1(a)(i)
or (ii), unless and until it receives written notification of such Event of
Default from the Company or by holders of at least 25% of the aggregate
principal amount of the Debentures at the time Outstanding;

     (d)  The Trustee may consult with counsel and the written advice of such
counsel or any Opinion of Counsel shall be full and complete authorization and
protection in respect of any action taken or suffered or omitted hereunder in
good faith and in reliance thereon;

     (e)  The Trustee shall be under no obligation to exercise any of the rights
or powers vested in it by this Indenture at the request, order or direction of
any of the Debentureholders, pursuant to the provisions of this Indenture,
unless such Debentureholders shall have offered to the Trustee reasonable
security or indemnity against the costs, expenses and liabilities that may be
incurred therein or thereby; nothing contained herein shall, however, relieve
the Trustee of the obligation, upon the occurrence of an Event of Default (that
has not been cured or waived) to exercise with respect to the Debentures such of
the rights and powers vested in it by this Indenture, and to use the same degree
of care and skill in their exercise, as a prudent man would exercise or use
under the circumstances in the conduct of his own affairs;

     (f)  The Trustee shall not be liable for any action taken or omitted to be
taken by it in good faith and believed by it to be authorized or within the
discretion or rights or powers conferred upon it by this Indenture;

     (g)  The Trustee shall not be bound to make any investigation into the
facts or matters stated in any resolution, certificate, statement, instrument,
opinion, report, notice, request, consent, order, approval, bond, security, or
other papers or documents, unless requested in writing so to do by the holders
of not less than a majority in principal amount of the Outstanding Debentures
(determined as provided in Section 10.4); provided, however, that if the payment
within a reasonable time to the Trustee of the costs, expenses or liabilities
likely to be incurred by it in the making of such investigation is, in the
opinion of the Trustee, not reasonably assured to the Trustee by the security
afforded to it by the terms of this Indenture, the Trustee may require
reasonable indemnity against such costs, expenses or liabilities as a condition
to so proceeding. The reasonable expense

                                      -37-
<PAGE>

of every such examination shall be paid by the Company or, if paid by the
Trustee, shall be repaid by the Company upon demand; and

     (h)  The Trustee may execute any of the trusts or powers hereunder or
perform any duties hereunder either directly or by or through agents or
attorneys and the Trustee shall not be responsible for any misconduct or
negligence on the part of any agent or attorney appointed with due care by it
hereunder.

Section 9.4  Trustee Not Responsible for Recitals, etc.

     (a)  The Recitals contained herein and in the Debentures shall be taken as
the statements of the Company, and the Trustee assumes no responsibility for the
correctness of the same.

     (b)  The Trustee makes no representations as to the validity or sufficiency
of this Indenture or of the Debentures.

     (c)  The Trustee shall not be accountable for the use or application by the
Company of any of the Debentures or of the proceeds of such Debentures, or for
the use or application of any moneys paid over by the Trustee in accordance with
any provision of this Indenture, or for the use or application of any moneys
received by any paying agent other than the Trustee.

Section 9.5  May Hold Debentures.

     The Trustee or any paying agent or registrar for the Debentures, in its
individual or any other capacity, may become the owner or pledgee of Debentures
with the same rights it would have if it were not Trustee, paying agent or
Debenture Registrar.

Section 9.6  Moneys Held in Trust.

     Subject to the provisions of Section 13.5, all moneys received by the
Trustee shall, until used or applied as herein provided, be held in trust for
the purposes for which they were received, but need not be segregated from other
funds except to the extent required by law. The Trustee shall be under no
liability for interest on any moneys received by it hereunder except such as it
may agree with the Company to pay thereon.

Section 9.7  Compensation and Reimbursement.

     (a)  The Company covenants and agrees to pay to the Trustee, and the
Trustee shall be entitled to, such compensation (which shall not be limited by
any provision of law in regard to the compensation of a trustee of an express
trust), as the Company and the Trustee may from time to time agree in writing,
for all services rendered by it in the execution of the trusts hereby created
and in the exercise and performance of any of the powers and duties hereunder of
the Trustee, and,

                                      -38-
<PAGE>

except as otherwise expressly provided herein, the Company shall pay or
reimburse the Trustee upon its request for all reasonable expenses,
disbursements and advances incurred or made by the Trustee in accordance with
any of the provisions of this Indenture (including the reasonable compensation
and the expenses and disbursements of its counsel and of all Persons not
regularly in its employ) except any such expense, disbursement or advance as may
arise from its negligence or bad faith. The Company also covenants to indemnify
the Trustee (and its officers, agents, directors and employees) for, and to hold
it harmless against, any loss, liability, claim, action, suit, cost or expense
incurred without negligence or bad faith on the part of the Trustee and arising
out of or in connection with the acceptance or administration of this trust,
including the costs and expenses of defending itself against any claim of
liability in the premises.

     (b)  The obligations of the Company under this Section 9.7 to compensate
and indemnify the Trustee and to pay or reimburse the Trustee for expenses,
disbursements and advances shall constitute additional indebtedness hereunder.
Such additional indebtedness shall be secured by a lien prior to that of the
Debentures upon all property and funds held or collected by the Trustee as such,
except funds held in trust for the benefit of the holders of particular
Debentures.

Section 9.8  Reliance on Officers' Certificate.

     Except as otherwise provided in Section 9.1, whenever in the administration
of the provisions of this Indenture the Trustee shall deem it necessary or
desirable that a matter be proved or established prior to taking or suffering or
omitting to take any action hereunder, such matter (unless other evidence in
respect thereof be herein specifically prescribed) may, in the absence of
negligence or bad faith on the part of the Trustee, be deemed to be conclusively
proved and established by an Officers' Certificate delivered to the Trustee and
such certificate, in the absence of negligence or bad faith on the part of the
Trustee, shall be full warrant to the Trustee for any action taken, suffered or
omitted to be taken by it under the provisions of this Indenture upon the faith
thereof.

Section 9.9  Disqualification: Conflicting Interests.

     If the Trustee has or shall acquire any "conflicting interest" within the
meaning of Section 310(b) of the Trust Indenture Act, the Trustee and the
Company shall in all respects comply with the provisions of Section 310(b) of
the Trust Indenture Act.

Section 9.10  Corporate Trustee Required; Eligibility.

     There shall at all times be a Trustee with respect to the Debentures issued
hereunder which shall at all times be a corporation organized and doing business
under the laws of the United States of America or any State or Territory thereof
or of the District of Columbia, or a corporation or other Person permitted to
act as trustee by the Commission, authorized under such laws to exercise
corporate trust powers, having a combined capital and surplus of at least
$50,000,000, and subject to supervision or examination by federal, state,
territorial, or District of Columbia authority.  If such

                                      -39-
<PAGE>

corporation publishes reports of condition at least annually, pursuant to law or
to the requirements of the aforesaid supervising or examining authority, then
for the purposes of this Section 9.10, the combined capital and surplus of such
corporation shall be deemed to be its combined capital and surplus as set forth
in its most recent report of condition so published. The Company may not, nor
may any Person directly or indirectly controlling, controlled by, or under
common control with the Company, serve as Trustee. In case at any time the
Trustee shall cease to be eligible in accordance with the provisions of this
Section 9.10, the Trustee shall resign immediately in the manner and with the
effect specified in Section 9.11.

Section 9.11  Resignation and Removal; Appointment of Successor.

     (a)  The Trustee or any successor hereafter appointed, may at any time
resign by giving written notice thereof to the Company and by transmitting
notice of resignation by mail, first class postage prepaid, to the
Debentureholders, as their names and addresses appear upon the Debenture
Register. Upon receiving such notice of resignation, the Company shall promptly
appoint a successor trustee with respect to Debentures by written instrument, in
duplicate, executed by order of the Board of Directors, one copy of which
instrument shall be delivered to the resigning Trustee and one copy to the
successor trustee. If no successor trustee shall have been so appointed and have
accepted appointment within 30 days after the mailing of such notice of
resignation, the resigning Trustee may petition any court of competent
jurisdiction for the appointment of a successor trustee with respect to
Debentures, or any Debentureholder who has been a bona fide holder of a
Debenture or Debentures for at least six months may, subject to the provisions
of Section 9.9, on behalf of himself and all others similarly situated, petition
any such court for the appointment of a successor trustee. Such court may
thereupon after such notice, if any, as it may deem proper and prescribe,
appoint a successor trustee.

     (a)  In case at any time any one of the following shall occur

          (i)   the Trustee shall fail to comply with the provisions of Section
                9.9 after written request therefor by the Company or by any
                Debentureholder who has been a bona fide holder of a Debenture
                or Debentures for at least six months; or

          (ii)  the Trustee shall cease to be eligible in accordance with the
                provisions of Section 9.10 and shall fail to resign after
                written request therefor by the Company or by any such
                Debentureholder; or the Trustee shall become incapable of
                acting, or shall be adjudged a bankrupt or insolvent, or
                commence a voluntary bankruptcy proceeding, or a receiver of the
                Trustee; or

                                      -40-
<PAGE>

          (iii)  of its property shall be appointed or consented to, or any
                 public officer shall take charge or control of the Trustee or
                 of its property or affairs for the purpose of rehabilitation,
                 conservation or liquidation,

then, in any such case, the Company may remove the Trustee with respect to all
Debentures and appoint a successor trustee by written instrument, in duplicate,
executed by order of the Board of Directors, one copy of which instrument shall
be delivered to the Trustee so removed and one copy to the successor trustee,
or, subject to the provisions of Section 9.9, unless the Trustee's duty to
resign is stayed as provided herein, any Debentureholder who has been a bona
fide holder of a Debenture or Debentures for at least six months may, on behalf
of that holder and all others similarly situated, petition any court of
competent jurisdiction for the removal of the Trustee and the appointment of a
successor trustee.  Such court may thereupon after such notice, if any, as it
may deem proper and prescribe, remove the Trustee and appoint a successor
trustee.

     (c)  The holders of a majority in aggregate principal amount of the
Debentures at the time Outstanding may at any time remove the Trustee by so
notifying the Trustee and the Company and may appoint a successor Trustee with
the consent of the Company.

     (d)  Any resignation or removal of the Trustee and appointment of a
successor trustee with respect to the Debentures pursuant to any of the
provisions of this Section 9.11 shall become effective upon acceptance of
appointment by the successor trustee as provided in Section 9.12.

     (e)  Any successor trustee appointed pursuant to this Section 9.11 may be
appointed with respect to the Debentures, and at any time there shall be only
one Trustee with respect to the Debentures.

Section 9.12  Acceptance of Appointment by Successor.

     (a)  In case of the appointment hereunder of a successor trustee with
respect to the Debentures, every successor trustee so appointed shall execute,
acknowledge and deliver to the Company and to the retiring Trustee an instrument
accepting such appointment, and thereupon the resignation or removal of the
retiring Trustee shall become effective and such successor trustee, without any
further act, deed or conveyance, shall become vested with all the rights,
powers, trusts and duties of the retiring Trustee; but, on the request of the
Company or the successor trustee, such retiring Trustee shall, upon payment of
its charges, execute and deliver an instrument transferring to such successor
trustee all the rights, powers, and trusts of the retiring Trustee and shall
duly assign, transfer and deliver to such successor trustee all property and
money held by such retiring Trustee hereunder.

     (b)  Upon request of any successor trustee, the Company shall execute any
and all instruments for more fully and certainly vesting in and confirming to
such successor trustee all such rights, powers and trusts referred to in
paragraph (a) of this Section 9.12.

                                      -41-
<PAGE>

     (c)  No successor trustee shall accept its appointment unless at the time
of such acceptance such successor trustee shall be qualified and eligible under
this Article IX.

     (d)  Upon acceptance of appointment by a successor trustee as provided in
this Section 9.12, the Company shall transmit notice of the succession of such
trustee hereunder by mail, first class postage prepaid, to the Debentureholders,
as their names and addresses appear upon the Debenture Register. If the Company
fails to transmit such notice within ten days after acceptance of appointment by
the successor trustee, the successor trustee shall cause such notice to be
transmitted at the expense of the Company.

Section 9.13  Merger, Conversion, Consolidation or Succession to Business.

  Any corporation into which the Trustee may be merged or converted or with
which it may be consolidated, or any corporation resulting from any merger,
conversion or consolidation to which the Trustee shall be a party, or any
corporation succeeding to the corporate trust business of the Trustee, shall be
the successor of the Trustee hereunder, provided that such corporation shall be
qualified under the provisions of Section 9.9 and eligible under the provisions
of Section 9.10, without the execution or filing of any paper or any further act
on the part of any of the parties hereto, anything herein to the contrary
notwithstanding. In case any Debentures shall have been authenticated, but not
delivered, by the Trustee then in office, any successor by merger, conversion or
consolidation to such authenticating Trustee may adopt such authentication and
deliver the Debentures so authenticated with the same effect as if such
successor Trustee had itself authenticated such Debentures.

Section 9.14  Preferential Collection of Claims Against the Company.

     The Trustee shall comply with Section 311(a) of the Trust Indenture Act,
excluding any creditor relationship described in Section 311(b) of the Trust
Indenture Act. A Trustee who has resigned or been removed shall be subject to
Section 311(a) of the Trust Indenture Act to the extent included therein.

                                  ARTICLE X

                        CONCERNING THE DEBENTUREHOLDERS

Section 10.1  Evidence of Action by Holders.

     (a)  Whenever in this Indenture it is provided that the holders of a
majority or specified percentage in aggregate principal amount of the Debentures
may take any action (including the making of any demand or request, the giving
of any notice, consent or waiver or the taking of any other action), the fact
that at the time of taking any such action the holders of such majority or

                                      -42-
<PAGE>

specified percentage have joined therein may be evidenced by any instrument or
any number of instruments of similar tenor executed by such holders of
Debentures in Person or by agent or proxy appointed in writing.

     (b)  If the Company shall solicit from the Debentureholders any request,
demand, authorization, direction, notice, consent, waiver or other action, the
Company may, at its option, as evidenced by an Officers' Certificate, fix in
advance a record date for the determination of Debentureholders entitled to give
such request, demand, authorization, direction, notice, consent, waiver or other
action, but the Company shall have no obligation to do so. If such a record date
is fixed, such request, demand, authorization, direction, notice, consent,
waiver or other action may be given before or after the record date, but only
the Debentureholders of record at the close of business on the record date shall
be deemed to be Debentureholders for the purposes of determining whether
Debentureholders of the requisite proportion of Outstanding Debentures have
authorized or agreed or consented to such request, demand, authorization,
direction, notice, consent, waiver or other action, and for that purpose the
Outstanding Debentures shall be computed as of the record date; provided,
however, that no such authorization, agreement or consent by such
Debentureholders on the record date shall be deemed effective unless it shall
become effective pursuant to the provisions of this Indenture not later than six
months after the record date.

Section 10.2  Proof of Execution by Debentureholders.

     Subject to the provisions of Section 9.1, proof of the execution of any
instrument by a Debentureholder (such proof shall not require notarization) or
his agent or proxy and proof of the holding by any Person of any of the
Debentures shall be sufficient if made in the following manner:

     (a)  The fact and date of the execution by any such Person of any
instrument may be proved in any reasonable manner acceptable to the Trustee.

     (b)  The ownership of Debentures shall be proved by the Debenture Register
of such Debentures or by a certificate of the Debenture Registrar thereof.

     (c)  The Trustee may require such additional proof of any matter referred
to in this Section 10.2 as it shall deem necessary.

Section 10.3  Who May be Deemed Owners.

     Prior to the due presentment for registration of transfer of any Debenture,
the Company, the Trustee, any paying agent, any Authenticating Agent and any
Debenture Registrar may deem and treat the Person in whose name such Debenture
shall be registered upon the books of the Company as the absolute owner of such
Debenture (whether or not such Debenture shall be overdue and notwithstanding
any notice of ownership or writing thereon made by anyone other than the
Debenture Registrar) for the purpose of receiving payment of or on account of
the principal of and

                                      -43-
<PAGE>

interest on such Debenture (subject to Section 2.3) and for all other purposes;
and neither the Company nor the Trustee nor any paying agent nor any
Authenticating Agent nor any Debenture Registrar shall be affected by any notice
to the contrary.

Section 10.4  Certain Debentures Owned by Company Disregarded.

     In determining whether the holders of the requisite aggregate principal
amount of Debentures have concurred in any direction, consent or waiver under
this Indenture, the Debentures that are owned by the Company or any other
obligor on the Debentures or by any Person directly or indirectly controlling or
controlled by or under common control with the Company or any other obligor on
the Debentures shall be disregarded and deemed not to be Outstanding for the
purpose of any such determination, except that for the purpose of determining
whether the Trustee shall be protected in relying on any such direction, consent
or waiver, only Debentures that the Trustee actually knows are so owned shall be
so disregarded. The Debentures so owned that have been pledged in good faith may
be regarded as Outstanding for the purposes of this Section 10.4, if the pledgee
shall establish to the satisfaction of the Trustee the pledgee's right so to act
with respect to such Debentures and that the pledgee is not a Person directly or
indirectly controlling or controlled by or under direct or indirect common
control with the Company or any such other obligor. In case of a dispute as to
such right, any decision by the Trustee taken upon the advice of counsel shall
be full protection to the Trustee.

Section 10.5  Actions Binding on Future Debentureholders.

     At any time prior to (but not after) the evidencing to the Trustee, as
provided in Section 10.1, of the taking of any action by the holders of the
majority or percentage in aggregate principal amount of the Debentures specified
in this Indenture in connection with such action, any holder of a Debenture that
is shown by the evidence to be included in the Debentures the holders of which
have consented to such action may, by filing written notice with the Trustee,
and upon proof of holding as provided in Section 10.2, revoke such action so far
as concerns such Debenture. Except as aforesaid any such action taken by the
holder of any Debenture shall be conclusive and binding upon such holder and
upon all future holders and owners of such Debenture, and of any Debenture
issued in exchange therefor, on registration of transfer thereof or in place
thereof, irrespective of whether or not any notation in regard thereto is made
upon such Debenture. Any action taken by the holders of the majority or
percentage in aggregate principal amount of the Debentures specified in this
Indenture in connection with such action shall be conclusively binding upon the
Company, the Trustee and the holders of all the Debentures.

                                      -44-
<PAGE>

                                  ARTICLE XI

                            SUPPLEMENTAL INDENTURES

Section 11.1  Supplemental Indentures Without the Consent of Debentureholders.

     In addition to any supplemental indenture otherwise authorized by this
Indenture, the Company and the Trustee may from time to time and at any time
enter into an indenture or indentures supplemental hereto (which shall conform
to the provisions of the Trust Indenture Act as then in effect), without the
consent of the Debentureholders, for one or more of the following purposes:

     (a)  to cure any ambiguity, defect, or inconsistency herein, in the
Debentures;

     (b)  to comply with Article X;

     (c)  to provide for uncertificated Debentures in addition to or in place of
certificated Debentures;

     (d)  to add to the covenants of the Company for the benefit of the holders
of all or any of the Debentures or to surrender any right or power herein
conferred upon the Company;

     (e)  to add to, delete from, or revise the conditions, limitations, and
restrictions on the authorized amount, terms, or purposes of issue,
authentication, and delivery of Debentures, only as herein set forth;

     (f)  to make any change that does not adversely affect the rights of any
Debentureholder in any material respect;

     (g)  to provide for the issuance of and establish the form and terms and
conditions of the Debentures, to establish the form of any certifications
required to be furnished pursuant to the terms of this Indenture or of the
Debentures, or to add to the rights of the holders of the Debentures; or

     (h)  qualify or maintain the qualification of this Indenture under the
Trust Indenture Act.

The Trustee is hereby authorized to join with the Company in the execution of
any such supplemental indenture, and to make any further appropriate agreements
and stipulations that may be therein contained, but the Trustee shall not be
obligated to enter into any such supplemental indenture that affects the
Trustee's own rights, duties or immunities under this Indenture or otherwise.
Any supplemental indenture authorized by the provisions of this Section 11.1 may
be executed by the Company and the Trustee without the consent of the holders of
any of the Debentures at the time Outstanding, notwithstanding any of the
provisions of Section 11.2.

                                      -45-
<PAGE>

Section 11.2  Supplemental Indentures with Consent of Debentureholders.

     With the consent (evidenced as provided in Section 10.1) of the holders of
not less than a majority in aggregate principal amount of the Debentures at the
time Outstanding, the Company, when authorized by Board Resolutions, and the
Trustee may from time to time and at any time enter into an indenture or
indentures supplemental hereto (which shall conform to the provisions of the
Trust Indenture Act as then in effect) for the purpose of adding any provisions
to or changing in any manner or eliminating any of the provisions of this
Indenture or of any supplemental indenture or of modifying in any manner not
covered by Section 11.1 the rights of the holders of the Debentures under this
Indenture; provided, however, that no such supplemental indenture shall without
the consent of the holders of each Debenture then Outstanding and affected
thereby, (i) extend the fixed maturity of any Debentures, reduce the principal
amount thereof, or reduce the rate or extend the time of payment of interest
thereon, without the consent of the holder of each Debenture so affected; or
(ii) reduce the aforesaid percentage of Debentures, the holders of which are
required to consent to any such supplemental indenture; provided further, that
if the Debentures are held by the Trust or a trustee of the Trust, such
supplemental indenture shall not be effective until the holders of a majority in
liquidation preference of Trust Securities of the Trust shall have consented to
such supplemental indenture; provided further, that if the consent of the holder
of each Outstanding Debenture is required, such supplemental indenture shall not
be effective until each holder of the Trust Securities of the Trust shall have
consented to such supplemental indenture. It shall not be necessary for the
consent of the Debentureholders affected thereby under this Section 11.2 to
approve the particular form of any proposed supplemental indenture, but it shall
be sufficient if such consent shall approve the substance thereof.

Section 11.3  Effect of Supplemental Indentures.

          Upon the execution of any supplemental indenture pursuant to the
provisions of this Article XI, this Indenture shall be and be deemed to be
modified and amended in accordance therewith and the respective rights,
limitations of rights, obligations, duties and immunities under this Indenture
of the Trustee, the Company and the holders of Debentures shall thereafter be
determined, exercised and enforced hereunder subject in all respects to such
modifications and amendments, and all the terms and conditions of any such
supplemental indenture shall be and be deemed to be part of the terms and
conditions of this Indenture for any and all purposes.

Section 11.4  Debentures Affected by Supplemental Indentures.

          Debentures affected by a supplemental indenture, authenticated and
delivered after the execution of such supplemental indenture pursuant to the
provisions of this Article XI, may bear a notation in form approved by the
Company, provided such form meets the requirements of any exchange upon which
the Debentures may be listed, as to any matter provided for in such supplemental
indenture. If the Company shall so determine, new Debentures so modified as to
conform, in the opinion of the Board of Directors of the Company, to any
modification of this

                                      -46-
<PAGE>

Indenture contained in any such supplemental indenture may be prepared by the
Company, authenticated by the Trustee and delivered in exchange for the
Debentures then Outstanding.

Section 11.5  Execution of Supplemental Indentures.

     (a)  Upon the request of the Company, accompanied by their Board
Resolutions authorizing the execution of any such supplemental indenture, and
upon the filing with the Trustee of evidence of the consent of Debentureholders
required to consent thereto as aforesaid, the Trustee shall join with the
Company in the execution of such supplemental indenture unless such supplemental
indenture affects the Trustee's own rights, duties or immunities under this
Indenture or otherwise, in which case the Trustee may in its discretion but
shall not be obligated to enter into such supplemental indenture. The Trustee,
subject to the provisions of Sections 9.1, may receive an Opinion of Counsel as
conclusive evidence that any supplemental indenture executed pursuant to this
Article XI is authorized or permitted by, and conforms to, the terms of this
Article XI and that it is proper for the Trustee under the provisions of this
Article XI to join in the execution thereof.

     (b)  Promptly after the execution by the Company and the Trustee of any
supplemental indenture pursuant to the provisions of this Section 11.5, the
trustee shall transmit by mail, first class postage prepaid, a notice, setting
forth in general terms the substance of such supplemental indenture, to the
Debentureholders as their names and addresses appear upon the Debenture
Register. Any failure of the Trustee to mail such notice, or any defect therein,
shall not, however, in any way impair or affect the validity of any such
supplemental indenture.

                                  ARTICLE XII

                             SUCCESSOR CORPORATION

Section 12.1  Company May Consolidate, etc.

     Nothing contained in this Indenture or in any of the Debentures shall
prevent any consolidation or merger of the Company with or into any other
corporation or corporations (whether or not affiliated with the Company, as the
case may be), or successive consolidations or mergers in which the Company, as
the case may be, or its successor or successors shall be a party or parties, or
shall prevent any sale, conveyance, transfer or other disposition of the
property of the Company, as the case may be, or its successor or successors as
an entirety, or substantially as an entirety, to any other corporation (whether
or not affiliated with the Company, as the case may be, or its successor or
successors) authorized to acquire and operate the same; provided, however, the
Company hereby covenants and agrees that, (i) upon any such consolidation,
merger, sale, conveyance, transfer or other disposition, the due and punctual
payment, in the case of the Company, of the principal of and interest on all of
the Debentures, according to their tenor and the due and punctual performance
and observance of all the covenants and conditions of this Indenture to be kept
or performed by the

                                      -47-
<PAGE>

Company as the case may be, shall be expressly assumed, by supplemental
indenture (which shall conform to the provisions of the Trust Indenture Act, as
then in effect) satisfactory in form to the Trustee executed and delivered to
the Trustee by the entity formed by such consolidation, or into which the
Company, as the case may be, shall have been merged, or by the entity which
shall have acquired such property; (ii) in case the Company consolidates with or
merges into another Person or conveys or transfers its properties and assets
substantially then as an entirety to any Person, the successor Person is
organized under the laws of the United States or any state or the District of
Columbia; and (iii) immediately after giving effect thereto, an Event of
Default, and no event which, after notice or lapse of time or both, would become
an Event of Default, shall have occurred and be continuing.

Section 12.2  Successor Corporation Substituted.

     (a)  In case of any such consolidation, merger, sale, conveyance, transfer
or other disposition and upon the assumption by the successor corporation, by
supplemental indenture, executed and delivered to the Trustee and satisfactory
in form to the Trustee, of, in the case of the Company, the due and punctual
payment of the principal of and interest on all of the Debentures Outstanding
and the due and punctual performance of all of the covenants and conditions of
this Indenture to be performed by the Company, as the case may be, such
successor corporation shall succeed to and be substituted for the Company, with
the same effect as if it had been named as the Company herein, and thereupon the
predecessor corporation shall be relieved of all obligations and covenants under
this Indenture and the Debentures.

     (b)  In case of any such consolidation, merger, sale, conveyance, transfer
or other disposition such changes in phraseology and form (but not in substance)
may be made in the Debentures thereafter to be issued as may be appropriate.

     (c)  Nothing contained in this Indenture or in any of the Debentures shall
prevent the Company from merging into itself or acquiring by purchase or
otherwise all or any part of the property of any other Person (whether or not
affiliated with the Company).

Section 12.3  Evidence of Consolidation, etc. to Trustee.

     The Trustee, subject to the provisions of Section 9.1, may receive an
Opinion of Counsel as conclusive evidence that any such consolidation, merger,
sale, conveyance, transfer or other disposition, and any such assumption, comply
with the provisions of this Article XII.

                                 ARTICLE XIII

                          SATISFACTION AND DISCHARGE

                                      -48-
<PAGE>

Section 13.1  Satisfaction and Discharge of Indenture.

     If at any time: (a) the Company shall have delivered to the Trustee for
cancellation all Debentures theretofore authenticated (other than any Debentures
that shall have been destroyed, lost or stolen and that shall have been replaced
or paid as provided in Section 2.9) and Debentures for whose payment money or
Governmental Obligations have theretofore been deposited in trust or segregated
and held in trust by the Company (and thereupon repaid to the Company or
discharged from such trust, as provided in Section 13.5); or (b) all such
Debentures not theretofore delivered to the Trustee for cancellation shall have
become due and payable, or are by their terms to become due and payable within
one year or are to be called for redemption within one year under arrangements
satisfactory to the Trustee for the giving of notice of redemption, and the
Company shall deposit or cause to be deposited with the Trustee as trust funds
the entire amount in moneys or Governmental Obligations sufficient or a
combination thereof, sufficient in the opinion of a nationally recognized firm
of independent public accountants expressed in a written certification thereof
delivered to the Trustee, to pay at maturity or upon redemption all Debentures
not theretofore delivered to the Trustee for cancellation, including principal
and interest due or to become due to such date of maturity or date fixed for
redemption, as the case may be, and if the Company shall also pay or cause to be
paid all other sums payable hereunder by the Company; then this Indenture shall
thereupon cease to be of further effect except for the provisions of Sections
2.3, 2.7, 2.9, 5.1, 5.2, 5.3 and 9.7, that shall survive until the date of
maturity or redemption date, as the case may be, and Sections 9.7 and 13.5, that
shall survive to such date and thereafter, and the Trustee, on demand of the
Company and at the cost and expense of the Company, shall execute proper
instruments acknowledging satisfaction of and discharging this Indenture.

Section 13.2  Discharge of Obligations.

     If at any time all Debentures not heretofore delivered to the Trustee for
cancellation or that have not become due and payable as described in Section
13.1 shall have been paid by the Company by depositing irrevocably with the
Trustee as trust funds moneys or an amount of Governmental Obligations
sufficient in the opinion of a nationally recognized certified public accounting
firm to pay at maturity or upon redemption all Debentures not theretofore
delivered to the Trustee for cancellation, including principal and interest due
or to become due to such date of maturity or date fixed for redemption, as the
case may be, and if the Company shall also pay or cause to be paid all other
sums payable hereunder by the Company, then after the date such moneys or
Governmental Obligations, as the case may be, are deposited with the Trustee,
the obligations of the Company under this Indenture shall cease to be of further
effect except for the provisions of Sections 2.3, 2.7, 2.9, 5.1, 5.2, 5.3, 9.6,
9.7 and 13.5 hereof that shall survive until such Debentures shall mature and be
paid. Thereafter, Sections 9.7 and 13.5 shall survive.

                                      -49-
<PAGE>

Section 13.3  Deposited Moneys to be Held in Trust.

     All monies or Governmental Obligations deposited with the Trustee pursuant
to Sections 13.1 or 13.2 shall be held in trust and shall be available for
payment as due, either directly or through any paying agent (including the
Company acting as its own paying agent), to the holders of the Debentures for
the payment or redemption of which such moneys or Governmental Obligations have
been deposited with the Trustee.

Section 13.4  Payment of Monies Held by Paying Agents.

     In connection with the satisfaction and discharge of this Indenture, all
moneys or Governmental Obligations then held by any paying agent under the
provisions of this Indenture shall, upon demand of the Company, be paid to the
Trustee and thereupon such paying agent shall be released from all further
liability with respect to such moneys or Governmental Obligations.

Section 13.5  Repayment to Company.

     Any monies or Governmental Obligations deposited with any paying agent or
the Trustee, or then held by the Company in trust, for payment of principal of
or interest on the Debentures that are not applied but remain unclaimed by the
holders of such Debentures for at least two years after the date upon which the
principal of or interest on such Debentures shall have respectively become due
and payable, shall be repaid to the Company, as the case may be, on May 31 of
each year or (if then held by the Company) shall be discharged from such trust;
and thereupon the paying agent and the Trustee shall be released from all
further liability with respect to such moneys or Governmental Obligations, and
the holder of any of the Debentures entitled to receive such payment shall
thereafter, as an unsecured general creditor, look only to the Company for the
payment thereof.

                                  ARTICLE XIV

               IMMUNITY OF INCORPORATORS, STOCKHOLDERS, OFFICERS
                                 AND DIRECTORS

Section 14.1  No Recourse.

     No recourse under or upon any obligation, covenant or agreement of this
Indenture, or of the Debentures, or for any claim based thereon or otherwise in
respect thereof, shall be had against any incorporator, stockholder, officer or
director, past, present or future as such, of the Company or of any predecessor
corporation, either directly or through the Company or any such predecessor
corporation, whether by virtue of any constitution, statute or rule of law, or
by the enforcement of any assessment or penalty or otherwise; it being expressly
understood that this Indenture and the obligations issued hereunder are solely
corporate obligations, and that no such personal liability

                                      -50-
<PAGE>

whatever shall attach to, or is or shall be incurred by, the incorporators,
stockholders, officers or directors as such, of the Company or of any
predecessor corporation, or any of them, because of the creation of the
indebtedness hereby authorized, or under or by reason of the obligations,
covenants or agreements contained in this Indenture or in any of the Debentures
or implied therefrom; and that any and all such personal liability of every name
and nature, either at common law or in equity or by constitution or statute, of,
and any and all such rights and claims against, every such incorporator,
stockholder, officer or director as such, because of the creation of the
indebtedness hereby authorized, or under or by reason of the obligations,
covenants or agreements contained in this Indenture or in any of the Debentures
or implied therefrom, are hereby expressly waived and released as a condition
of, and as a consideration for, the execution of this Indenture and the issuance
of such Debentures.

                                  ARTICLE XV

                           MISCELLANEOUS PROVISIONS

Section 15.1  Effect on Successors and Assigns.

     All the covenants, stipulations, promises and agreements in this Indenture
contained by or on behalf of the Company shall bind their respective successors
and assigns, whether so expressed or not.

Section 15.2  Actions by Successor.

     Any act or proceeding by any provision of this Indenture authorized or
required to be done or performed by any board, committee or officer of the
Company shall and may be done and performed with like force and effect by the
corresponding board, committee or officer of any corporation that shall at the
time be the lawful sole successor of the Company.

Section 15.3  Surrender of Company Powers.

     The Company by instrument in writing executed by appropriate authority of
its Board of Directors and delivered to the Trustee may surrender any of the
powers reserved to the Company, and thereupon such power so surrendered shall
terminate both as to the Company, as the case may be, and as to any successor
corporation.

Section 15.4  Notices.

     Except as otherwise expressly provided herein any notice or demand that by
any provision of this Indenture is required or permitted to be given or served
by the Trustee or by the holders of Debentures to or on the Company may be given
or served by being deposited first class postage prepaid in a post-office
letterbox addressed (until another address is filed in writing by the Company

                                      -51-
<PAGE>

with the Trustee), as follows: Paradigm Bancorporation, Inc., 2828 FM 1960,
Houston, Texas 77273, Attention: Peter E. Fisher.  Any notice, election, request
or demand by the Company or any Debentureholder to or upon the Trustee shall be
deemed to have been sufficiently given or made, for all purposes, if given or
made in writing at the Corporate Trust Office of the Trustee.

Section 15.5  Governing Law.

     This Indenture and each Debenture shall be deemed to be a contract made
under the internal laws of the State of Texas and for all purposes shall be
construed in accordance with the laws of said State.

Section 15.6  Treatment of Debentures as Debt.

     It is intended that the Debentures shall be treated as indebtedness and not
as equity for federal income tax purposes. The provisions of this Indenture
shall be interpreted to further this intention.

Section 15.7  Compliance Certificates and Opinions.

     (a)  Upon any application or demand by the Company to the Trustee to take
any action under any of the provisions of this Indenture, the Company shall
furnish to the Trustee an Officers' Certificate stating that all conditions
precedent provided for in this Indenture relating to the proposed action have
been complied with and an Opinion of Counsel stating that in the opinion of such
counsel all such conditions precedent have been complied with, except that in
the case of any such application or demand as to which the furnishing of such
documents is specifically required by any provision of this Indenture relating
to such particular application or demand, no additional certificate or opinion
need be furnished.

     (b)  Each certificate or opinion of the Company provided for in this
Indenture and delivered to the Trustee with respect to compliance with a
condition or covenant in this Indenture shall include (i) a statement that the
Person making such certificate or opinion has read such covenant or condition;
(ii) a brief statement as to the nature and scope of the examination or
investigation upon which the statements or opinions contained in such
certificate or opinion are based; (iii) a statement that, in the opinion of such
Person, he has made such examination or investigation as, in the opinion of such
Person, is necessary to enable him to express an informed opinion as to whether
or not such covenant or condition has been complied with; and (iv) a statement
as to whether or not, in the opinion of such Person, such condition or covenant
has been complied with; provided, however, that each such certificate shall
comply with the provisions of Section 314 of the Trust Indenture Act.

                                      -52-
<PAGE>

Section 15.8  Payments on Business Days.

     In any case where the date of maturity of interest or principal of any
Debenture or the date of redemption of any Debenture shall not be a Business
Day, then payment of interest or principal may be made on the next succeeding
Business Day with the same force and effect as if made on the nominal date of
maturity or redemption, and no interest shall accrue for the period after such
nominal date.

Section 15.9  Conflict with Trust Indenture Act.

     If and to the extent that any provision of this Indenture limits, qualifies
or conflicts with the duties imposed by Sections 310 to 317, inclusive, of the
Trust Indenture Act, such imposed duties shall control.

Section 15.10  Counterparts.

     This Indenture may be executed in any number of counterparts, each of which
shall be an original, but such counterparts shall together constitute but one
and the same instrument.

Section 15.11  Separability.

     In case any one or more of the provisions contained in this Indenture or in
the Debentures shall for any reason be held to be invalid, illegal or
unenforceable in any respect, such invalidity, illegality or unenforceability
shall not affect any other provisions of this Indenture or of the Debentures,
but this Indenture and the Debentures shall be construed as if such invalid or
illegal or unenforceable provision had never been contained herein or therein.

Section 15.12  Assignment.

     The Company shall have the right at all times to assign any of its
respective rights or obligations under this Indenture to a direct or indirect
wholly owned Subsidiary of the Company, provided that, in the event of any such
assignment, the Company shall remain liable for all such obligations.  Subject
to the foregoing, this Indenture is binding upon and inures to the benefit of
the parties thereto and their respective successors and assigns.  This Indenture
may not otherwise be assigned by the parties thereto.

Section 15.13  Acknowledgment of Rights.

     The Company acknowledges that, with respect to any Debentures held by the
Trust or a trustee of the Trust, if the Property Trustee fails to enforce its
rights under this Indenture as the holder of the Debentures held as the assets
of the Trust, any holder of Trust Preferred Securities may, to the extent
permitted under applicable law, institute legal proceedings directly against the

                                      -53-
<PAGE>

Company to enforce such Property Trustee's rights under this Indenture without
first instituting any legal proceedings against such Property Trustee or any
other person or entity.  Notwithstanding the foregoing, if an Event of Default
has occurred and is continuing and such event is attributable to the failure of
the Company to pay interest or principal on the Debentures on the date such
interest or principal is otherwise payable (or in the case of redemption, on the
redemption date), the Company acknowledges that a holder of Trust Preferred
Securities may directly institute a proceeding for enforcement of payment to
such holder of the principal of or interest on the Debentures having a principal
amount equal to the aggregate liquidation amount of the Trust Preferred
Securities of such holder on or after the respective due date specified in the
Debentures.

                                  ARTICLE XVI

                          SUBORDINATION OF DEBENTURES

Section 16.1  Agreement to Subordinate.

     The Company covenants and agrees, and each holder of Debentures issued
hereunder by such holder's acceptance thereof likewise covenants and agrees,
that all Debentures shall be issued subject to the provisions of this Article
XVI; and each holder of a Debenture, whether upon original issue or upon
transfer or assignment thereof, accepts and agrees to be bound by such
provisions.  The payment by the Company of the principal of and interest on all
Debentures issued hereunder shall, to the extent and in the manner hereinafter
set forth, be subordinated and junior in right of payment to the prior payment
in full of all Senior Debt, Subordinated Debt and Additional Senior Obligations
(collectively, "Senior Indebtedness") to the extent provided herein, whether
outstanding at the date of this Indenture or thereafter incurred.  No provision
of this Article XVI shall prevent the occurrence of any default or Event of
Default hereunder.

Section 16.2  Default on Senior Debt, Subordinated Debt or Additional Senior
Obligations.

     In the event and during the continuation of any default by the Company in
the payment of principal, premium, interest or any other payment due on any
Senior Indebtedness of the Company, or in the event that the maturity of any
Senior Indebtedness of the Company has been accelerated because of a default,
then, in either case, no payment shall be made by the Company with respect to
the principal (including redemption payments) of or interest on the Debentures.
In the event that, notwithstanding the foregoing, any payment shall be received
by the Trustee when such payment is prohibited by the preceding sentence of this
Section 16.2, such payment shall be held in trust for the benefit of, and shall
be paid over or delivered to, the holders of Senior Indebtedness or their
respective representatives, or to the trustee or trustees under any indenture
pursuant to which any of such Senior Indebtedness may have been issued, as their
respective interests may appear, but only to the extent that the holders of the
Senior Indebtedness (or their representative or representatives or a trustee)
notify the Trustee in writing within 90 days of such payment of the amounts then
due

                                      -54-
<PAGE>

and owing on the Senior Indebtedness and only the amounts specified in such
notice to the Trustee shall be paid to the holders of Senior Indebtedness.

Section 16.3  Liquidation; Dissolution; Bankruptcy.

     (a)  Upon any payment by the Company or distribution of assets of the
Company of any kind or character, whether in cash, property or securities, to
creditors upon any dissolution or winding-up or liquidation or reorganization of
the Company, whether voluntary or involuntary or in bankruptcy, insolvency,
receivership or other proceedings, all amounts due upon all Senior Indebtedness
of the Company shall first be paid in full, or payment thereof provided for in
money in accordance with its terms, before any payment is made by the Company on
account of the principal or interest on the Debentures; and upon any such
dissolution or winding-up or liquidation or reorganization, any payment by the
Company, or distribution of assets of the Company of any kind or character,
whether in cash, property or securities, to which the holders of the Debentures
or the Trustee would be entitled to receive from the Company, except for the
provisions of this Article XVI, shall be paid by the Company or by any receiver,
trustee in bankruptcy, liquidating trustee, agent or other Person making such
payment or distribution, or by the holders of the Debentures or by the Trustee
under this Indenture if received by them or it, directly to the holders of
Senior Indebtedness of the Company (pro rata to such holders on the basis of the
respective amounts of Senior Indebtedness held by such holders, as calculated by
the Company) or their representative or representatives, or to the trustee or
trustees under any indenture pursuant to which any instruments evidencing such
Senior Indebtedness may have been issued, as their respective interests may
appear, to the extent necessary to pay such Senior Indebtedness in full, in
money or money's worth, after giving effect to any concurrent payment or
distribution to or for the holders of such Senior Indebtedness, before any
payment or distribution is made to the holders of Debentures or to the Trustee.

     (b)  In the event that, notwithstanding the foregoing, any payment or
distribution of assets of the Company of any kind or character, whether in cash,
property or securities, prohibited by the foregoing, shall be received by the
Trustee before all Senior Indebtedness of the Company is paid in full, or
provision is made for such payment in money in accordance with its terms, such
payment or distribution shall be held in trust for the benefit of and shall be
paid over or delivered to the holders of such Senior Indebtedness or their
representative or representatives, or to the trustee or trustees under any
indenture pursuant to which any instruments evidencing such Senior Indebtedness
may have been issued, and their respective interests may appear, as calculated
by the Company, for application to the payment of all Senior Indebtedness of the
Company, as the case may be, remaining unpaid to the extent necessary to pay
such Senior Indebtedness in full in money in accordance with its terms, after
giving effect to any concurrent payment or distribution to or for the benefit of
the holders of such Senior Indebtedness.

                                      -55-
<PAGE>

     (c)  For purposes of this Article XVI, the words "cash, property or
securities" shall not be deemed to include shares of stock of the Company as
reorganized or readjusted, or securities of the Company or any other corporation
provided for by a plan of reorganization or readjustment, the payment of which
is subordinated at least to the extent provided in this Article XVI with respect
to the Debentures to the payment of all Senior Indebtedness of the Company, as
the case may be, that may at the time be outstanding, provided that (i) such
Senior Indebtedness is assumed by the new corporation, if any, resulting from
any such reorganization or readjustment; and (ii) the rights of the holders of
such Senior Indebtedness are not, without the consent of such holders, altered
by such reorganization or readjustment. The consolidation of the Company with,
or the merger of the Company into, another corporation or the liquidation or
dissolution of the Company following the conveyance or transfer of its property
as an entirety, or substantially as an entirety, to another corporation upon the
terms and conditions provided for in Article XII shall not be deemed a
dissolution, winding-up, liquidation or reorganization for the purposes of this
Section 16.3 if such other corporation shall, as a part of such consolidation,
merger, conveyance or transfer, comply with the conditions stated in Article
XII.  Nothing in Section 16.2 or in this Section 16.3 shall apply to claims of,
or payments to, the Trustee under or pursuant to Section 9.7.

Section 16.4  Subrogation.

     (a)  Subject to the payment in full of all Senior Indebtedness of the
Company, the rights of the holders of the Debentures shall be subrogated to the
rights of the holders of such Senior Indebtedness to receive payments or
distributions of cash, property or securities of the Company, as the case may
be, applicable to such Senior Indebtedness until the principal of and interest
on the Debentures shall be paid in full; and, for the purposes of such
subrogation, no payments or distributions to the holders of such Senior
Indebtedness of any cash, property or securities to which the holders of the
Debentures or the Trustee would be entitled except for the provisions of this
Article XVI, and no payment over pursuant to the provisions of this Article XVI
to or for the benefit of the holders of such Senior Indebtedness by holders of
the Debentures or the Trustee, shall, as between the Company, its creditors
other than holders of Senior Indebtedness of the Company, and the holders of the
Debentures, be deemed to be a payment by the Company to or on account of such
Senior Indebtedness.  It is understood that the provisions of this Article XVI
are and are intended solely for the purposes of defining the relative rights of
the holders of the Debentures, on the one hand, and the holders of such Senior
Indebtedness on the other hand.

     (b)  Nothing contained in this Article XVI or elsewhere in this Indenture
or in the Debentures is intended to or shall impair, as between the Company, its
creditors (other than the holders of Senior Indebtedness of the Company), and
the holders of the Debentures, the obligation of the Company, which is absolute
and unconditional, to pay to the holders of the Debentures the principal of and
interest on the Debentures as and when the same shall become due and payable in
accordance with their terms, or is intended to or shall affect the relative
rights of the holders of the Debentures and creditors of the Company, as the
case may be, other than the holders of Senior Indebtedness of the Company, as
the case may be, nor shall anything herein or therein prevent the

                                      -56-
<PAGE>

Trustee or the holder of any Debenture from exercising all remedies otherwise
permitted by applicable law upon default under this Indenture, subject to the
rights, if any, under this Article XVI of the holders of such Senior
Indebtedness in respect of cash, property or securities of the Company, as the
case may be, received upon the exercise of any such remedy.

     (c)  Upon any payment or distribution of assets of the Company referred to
in this Article XVI, the Trustee, subject to the provisions of Article IX, and
the holders of the Debentures shall be entitled to conclusively rely upon any
order or decree made by any court of competent jurisdiction in which such
dissolution, winding-up, liquidation or reorganization proceedings are pending,
or a certificate of the receiver, trustee in bankruptcy, liquidation trustee,
agent or other Person making such payment or distribution, delivered to the
Trustee or to the holders of the Debentures, for the purposes of ascertaining
the Persons entitled to participate in such distribution, the holders of Senior
Indebtedness and other indebtedness of the Company, as the case may be, the
amount thereof or payable thereon, the amount or amounts paid or distributed
thereon and all other facts pertinent thereto or to this Article XVI.

Section 16.5  Trustee to Effectuate Subordination.

     Each holder of Debentures by such holder's acceptance thereof authorizes
and directs the Trustee on such holder's behalf to take such action as may be
necessary or appropriate to effectuate the subordination provided in this
Article XVI and appoints the Trustee such holder's attorney-in-fact for any and
all such purposes.

Section 16.6  Notice by the Company.

     (a)  The Company shall give prompt written notice to a Responsible Officer
of the Trustee of any fact known to the Company that would prohibit the making
of any payment of monies to or by the Trustee in respect of the Debentures
pursuant to the provisions of this Article XVI. Notwithstanding the provisions
of this Article XVI or any other provision of this Indenture, the Trustee shall
not be charged with knowledge of the existence of any facts that would prohibit
the making of any payment of monies to or by the Trustee in respect of the
Debentures pursuant to the provisions of this Article XVI, unless and until a
Responsible Officer of the Trustee shall have received written notice thereof
from the Company or a holder or holders of Senior Indebtedness or from any
trustee therefor; and before the receipt of any such written notice, the
Trustee, subject to the provisions of Section 9.1, shall be entitled in all
respects to assume that no such facts exist; provided, however, that if the
Trustee shall not have received the notice provided for in this Section 16.6 at
least two Business Days prior to the date upon which by the terms hereof any
money may become payable for any purpose (including, without limitation, the
payment of the principal of or interest on any Debenture), then, anything herein
contained to the contrary notwithstanding, the Trustee shall have full power and
authority to receive such money and to apply the same to the purposes for which
they were received, and shall not be affected by any notice to the contrary that
may be received by it within two Business Days prior to such date.

                                      -57-
<PAGE>

     (b)  The Trustee, subject to the provisions of Section 9.1, shall be
entitled to conclusively rely on the delivery to it of a written notice by a
Person representing himself to be a holder of Senior Indebtedness of the Company
(or a trustee on behalf of such holder) to establish that such notice has been
given by a holder of such Senior Indebtedness or a trustee on behalf of any such
holder or holders. In the event that the Trustee determines in good faith that
further evidence is required with respect to the right of any Person as a holder
of such Senior Indebtedness to participate in any payment or distribution
pursuant to this Article XVI, the Trustee may request such Person to furnish
evidence to the reasonable satisfaction of the Trustee as to the amount of such
Senior Indebtedness held by such Person, the extent to which such Person is
entitled to participate in such payment or distribution and any other facts
pertinent to the rights of such Person under this Article XVI, and, if such
evidence is not furnished, the Trustee may defer any payment to such Person
pending judicial determination as to the right of such Person to receive such
payment.

Section 16.7  Rights of the Trustee; Holders of Senior Indebtedness.

     (a)  The Trustee in its individual capacity shall be entitled to all the
rights set forth in this Article XVI in respect of any Senior Indebtedness at
any time held by it, to the same extent as any other holder of Senior
Indebtedness, and nothing in this Indenture shall deprive the Trustee of any of
its rights as such holder.  The Trustee's right to compensation and
reimbursement of expenses as set forth in Section 9.7 shall not be subject to
the subordination provisions of the Article XVI.

     (b)  With respect to the holders of Senior Indebtedness of the Company, the
Trustee undertakes to perform or to observe only such of its covenants and
obligations as are specifically set forth in this Article XVI, and no implied
covenants or obligations with respect to the holders of such Senior Indebtedness
shall be read into this Indenture against the Trustee. The Trustee shall not be
deemed to owe any fiduciary duty to the holders of such Senior Indebtedness and,
subject to the provisions of Section 9.1, the Trustee shall not be liable to any
holder of such Senior Indebtedness if it shall pay over or deliver to holders of
Debentures, the Company or any other Person money or assets to which any holder
of such Senior Indebtedness shall be entitled by virtue of this Article XVI or
otherwise.

Section 16.8  Subordination may not be Impaired.

     (a)  No right of any present or future holder of any Senior Indebtedness of
the Company to enforce subordination as herein provided shall at any time in any
way be prejudiced or impaired by any act or failure to act on the part of the
Company or by any act or failure to act, in good faith, by any such holder, or
by any noncompliance by the Company with the terms, provisions and covenants of
this Indenture, regardless of any knowledge thereof that any such holder may
have or otherwise be charged with.

     (b)  Without in any way limiting the generality of the foregoing paragraph,
the holders of Senior Indebtedness of the Company may, at any time and from time
to time, without the consent

                                      -58-
<PAGE>

of or notice to the Trustee or the holders of the Debentures, without incurring
responsibility to the holders of the Debentures and without impairing or
releasing the subordination provided in this Article XVI or the obligations
hereunder of the holders of the Debentures to the holders of such Senior
Indebtedness, do any one or more of the following: (i) change the manner, place
or terms of payment or extend the time of payment of, or renew or alter, such
Senior Indebtedness, or otherwise amend or supplement in any manner such Senior
Indebtedness or any instrument evidencing the same or any agreement under which
such Senior Indebtedness is outstanding; (ii) sell, exchange, release or
otherwise deal with any property pledged, mortgaged or otherwise securing such
Senior Indebtedness; (iii) release any Person liable in any manner for the
collection of such Senior Indebtedness; and (iv) exercise or refrain from
exercising any rights against the Company and any other Person.

                           [SIGNATURE PAGE FOLLOWS]

                                      -59-
<PAGE>

     IN WITNESS WHEREOF, the parties hereto have caused this Indenture to be
duly executed, all as of the day and year first above written.

                              PARADIGM BANCORPORATION, INC.

                              By:____________________________________
                              Name: Peter E. Fisher
                              Title: President

                              FIRST UNION TRUST COMPANY, NATIONAL
                              ASSOCIATION, AS TRUSTEE

                              By:____________________________________
                              Name: Edward L. Truitt, Jr.
                              Title: Vice President

                                      -60-
<PAGE>

STATE OF TEXAS    (S)
                  (S)
COUNTY OF HARRIS  (S)

     On the ______ day of ___________, 2000, before me personally came Peter E.
Fisher to me known, who, being by me duly sworn, did depose and say that he is
the President of Company, one of the corporations described in and which
executed the above instrument; that he knows the corporate seal of said
corporation; that the seal affixed to the said instrument is such corporation
seal; that it was so affixed by authority of the Board of Directors of said
corporation, and that he signed his name thereto by like authority.

                                    ____________________________________
                                    Notary Public

(seal)                              My Commission expires: _____________

                                      -61-
<PAGE>

                                   EXHIBIT A

                          (FORM OF FACE OF DEBENTURE)

                         PARADIGM BANCORPORATION, INC.

                     FLOATING RATE SUBORDINATED DEBENTURE

                            DUE _____________, 2030

No. -1-                                                             $___________

                            CUSIP No. _____________

     Paradigm Bancorporation, Inc., a Texas corporation (the "Company," which
term includes any successor corporation under the Indenture hereinafter referred
to), for value received, hereby promises to pay to, Paradigm Capital Trust II or
registered assigns, the principal sum of _______________________________________
on __________, 2030 (the "Stated Maturity"), and to pay interest on said
principal sum from _____________, 2000, or from the most recent interest payment
date (each such date, an "Interest Payment Date") to which interest has been
paid or duly provided for, quarterly (subject to deferral as set forth herein)
in arrears on March 31, June 30, September 30 and December 31 of each year
commencing ______________, 2000, at the rate of 3.75% per annum over the Three-
Month LIBOR Rate (the "Floating Interest Rate") from time to time in effect
determined in the manner provided below until the principal hereof shall have
become due and payable, and on any overdue principal and (without duplication
and to the extent that payment of such interest is enforceable under applicable
law) on any overdue installment of interest at the same rate per annum
compounded quarterly.  The Floating Interest Rate for each interest period will
be set on the 15/th/ day of the months, March, June, September and December of
each year; provided, that the initial Floating Interest Rate will be set on
_________, 2000 (each such date, an "Interest Reset Date"), until the principal
on the Debentures is paid or made available for payment.  If the Interest Reset
Date is not a Business Day, then such Interest Reset Date shall be the next

                                      A-1
<PAGE>

succeeding day which is a Business Day.  The amount of interest payable on any
Interest Payment Date shall be computed on the basis of a 360-day year of twelve
30-day months. The amount of interest for any partial period shall be computed
on the basis of the number of days elapsed in a 360-day year of twelve 30-day
months. In the event that any date on which interest is payable on this
Debenture is not a business day, then payment of interest payable on such date
shall be made on the next succeeding day that is a business day (and without any
interest or other payment in respect of any such delay) except that, if such
business day is in the next succeeding calendar year, payment of such interest
will be made on the immediately preceding business day, in each case, with the
same force and effect as if made on such date. The interest installment so
payable, and punctually paid or duly provided for, on any Interest Payment Date
shall, as provided in the Indenture, be paid to the person in whose name this
Debenture (or one or more Predecessor Debentures, as defined in said Indenture)
is registered at the close of business on the regular record date for such
interest installment, which shall be the close of business on the business day
next preceding such Interest Payment Date unless otherwise provided in the
Indenture. Any such interest installment not punctually paid or duly provided
for shall forthwith cease to be payable to the registered holders on such
regular record date and may be paid to the Person in whose name this Debenture
(or one or more Predecessor Debentures) is registered at the close of business
on a special record date to be fixed by the Trustee for the payment of such
defaulted interest, notice whereof shall be given to the registered holders of
the Debentures not less than 10 days prior to such special record date, or may
be paid at any time in any other lawful manner not inconsistent with the
requirements of any securities exchange on which the Debentures may be listed,
and upon such notice as may be required by such exchange, all as more fully
provided in the Indenture. The principal of and the interest on this Debenture
shall be payable at the office or agency of the Trustee maintained for that
purpose in any coin or currency of the United States of America that at the time
of payment is legal tender for payment of public and private debts; provided,
however, that payment of interest may be made at the option of the Company by
check mailed to the registered holder at such address as shall appear in the
Debenture Register. Notwithstanding the foregoing, so long as the holder of this
Debenture is the Property Trustee, the payment of the principal of and interest
on this Debenture shall be made at such place and to such account as may be
designated by the Trustee.

     The "Three-Month LIBOR Rate" shall mean the rate determined in accordance
with the following provisions:

          (i) On the second London business day preceding each Interest Reset
     Date (each such date, an "Interest Determination Date"), First Union Trust
     Company, National Association (the "Calculation Agent"), will determine the
     Three-Month LIBOR Rate which shall be the rate for deposits in the London
     interbank market in U.S. dollars having a three-month maturity commencing
     on the second London business day immediately following such Interest
     Determination Date which appears on the Telerate Page 3750 as of 11:00
     a.m., London time, on such Interest Determination Date. "Telerate Page
     3750" means the display on Page 3750 of the Dow Jones Telerate Service (or
     such other page as may replace that page on that service for the purpose of
     displaying London interbank offered rates of major banks

                                      A-2
<PAGE>

     for U.S. dollar deposits). If the Three-Month LIBOR Rate on such Interest
     Determination Date does not appear on the Telerate Page 3750, such Three-
     Month LIBOR Rate will be determined as described in (ii) below. London
     business day means any day on which dealings in deposits in U.S. dollars
     are transacted in the London interbank market.

          (ii) With respect to an Interest Determination Date for which the
     Three-Month LIBOR Rate does not appear on the Telerate Page 3750 as
     specified in (i) above, the Calculation Agent will request the principal
     London offices of each of four major banks in the London interbank market,
     as selected by the Calculation Agent, to provide the Calculation Agent with
     its offered quotation for deposits in U.S. dollars having a three-month
     maturity commencing on the second London business day immediately following
     such Interest Determination Date to prime banks in the London interbank
     market at approximately 11:00 a.m., London time, on such Interest
     Determination Date and in a principal amount that is representative for a
     single transaction in such market at such time. If at least two such
     quotations are provided, the Three-Month LIBOR Rate on such Interest
     Determination Date will be the arithmetic mean (rounded upwards, if
     necessary, to the nearest one hundred-thousandth of a percentage point,
     with five or more one-millionths of one percentage point rounded upwards)
     of such quotations. If fewer than two quotations are provided, the Three-
     Month LIBOR Rate determined on such Interest Determination Date will be the
     arithmetic mean (rounded upwards, if necessary, to the nearest one hundred-
     thousandth of a percentage point, with five or more one-millionths of one
     percentage point rounded upwards) of the rates quoted at approximately
     11:00 a.m., New York City time, on such Interest Determination Date for
     loans in U.S. dollars to leading European banks, having a three-month
     maturity commencing on the second London business day immediately following
     such Interest Determination Date and in a principal amount that is
     representative for a single transaction in such market at such time by
     three major banks in New York City selected by the Calculation Agent;
     provided, however, if the banks so selected by the Calculation Agent are
     not quoting as aforesaid, the Three-Month LIBOR Rate with respect to such
     Interest Determination Date will be the Three-Month LIBOR Rate in effect on
     such Interest Determination Date.

     The Stated Maturity may be shortened at any time by the Company to any date
not earlier than ___________, 2005, subject to the Company having received prior
approval of the Federal Reserve if then required under applicable capital
guidelines, policies or regulations of the Federal Reserve.

     The indebtedness evidenced by this Debenture is, to the extent provided in
the Indenture, subordinate and junior in right of payment to the prior payment
in full of all Senior Indebtedness, and this Debenture is issued subject to the
provisions of the Indenture with respect thereto. Each holder of this Debenture,
by accepting the same, (a) agrees to and shall be bound by such provisions; (b)
authorizes and directs the Trustee on his or her behalf to take such action as
may be necessary or appropriate to acknowledge or effectuate the subordination
so provided; and (c) appoints the

                                      A-3
<PAGE>

Trustee his or her attorney-in-fact for any and all such purposes. Each holder
hereof, by his or her acceptance hereof, hereby waives all notice of the
acceptance of the subordination provisions contained herein and in the Indenture
by each holder of Senior Indebtedness, whether now outstanding or hereafter
incurred, and waives reliance by each such holder upon said provisions.

     This Debenture shall not be entitled to any benefit under the Indenture
hereinafter referred to, be valid or become obligatory for any purpose until the
Certificate of Authentication hereon shall have been signed by or on behalf of
the Trustee.

     The provisions of this Debenture are continued on the reverse side hereof
and such continued provisions shall for all purposes have the same effect as
though fully set forth at this place.

     IN WITNESS WHEREOF, the Company has caused this instrument to be executed.

     Dated _______________, 2000

                                       PARADIGM BANCORPORATION, INC.

                                       By:_________________________________
                                       Name: Peter E. Fisher
                                       Title: President

Attest:

By: ___________________________
Name: Brad Fagan
Title: Chief Financial Officer

                                      A-4
<PAGE>

                     FORM OF CERTIFICATE OF AUTHENTICATION

                         CERTIFICATE OF AUTHENTICATION

     This is one of the Debentures described in the within-mentioned Indenture.

     Dated: _____________, 2000

First Union Trust Company,             ________________________________________
 National Association, as Trustee      or Authentication Agent

By:_____________________________       By: ____________________________________
     Authorized Signatory

                                      A-5
<PAGE>

                         FORM OF REVERSE OF DEBENTURE

                     FLOATING RATE SUBORDINATED DEBENTURE

                                  (CONTINUED)

     This Debenture is one of the subordinated debentures of the Company (herein
sometimes referred to as the "Debentures"), specified in the Indenture, all
issued or to be issued under and pursuant to an Indenture dated as of
_____________, 2000 (the "Indenture") duly executed and delivered between the
Company and First Union Trust Company, National Association, as Trustee (the
"Trustee"), to which Indenture reference is hereby made for a description of the
rights, limitations of rights, obligations, duties and immunities thereunder of
the Trustee, the Company and the holders of the Debentures. The Debentures are
limited in aggregate principal amount as specified in the Indenture.

     Because of the occurrence and continuation of a Special Event, in certain
circumstances, this Debenture may become due and payable at the principal amount
together with any interest accrued thereon (the "Redemption Price").  The
Redemption Price shall be paid prior to 12:00 noon, Eastern Standard Time, time,
on the date of such redemption or at such earlier time as the Company
determines.  The Company shall have the right to redeem this Debenture at the
option of the Company, without premium or penalty, in whole or in part at any
time on or after _________, 2005 (an "Optional Redemption"), or at any time in
certain circumstances upon the occurrence of a Special Event, at a Redemption
Price equal to 100% of the principal amount plus any accrued but unpaid
interest, to the date of such redemption.  Any redemption pursuant to this
paragraph shall be made upon not less than 30 days nor more than 60 days notice,
at the Redemption Price.  If the Debentures are only partially redeemed by the
Company pursuant to an Optional Redemption, the Debentures shall be redeemed pro
rata or by lot or by any other method utilized by the Trustee.

     In the event of redemption of this Debenture in part only, a new Debenture
or Debentures for the unredeemed portion hereof shall be issued in the name of
the holder hereof upon the cancellation hereof.  In case an Event of Default, as
defined in the Indenture, shall have occurred and be continuing, the principal
of all of the Debentures may be declared, and upon such declaration shall
become, due and payable, in the manner, with the effect and subject to the
conditions provided in the Indenture.

     The Indenture contains provisions permitting the Company and the Trustee,
with the consent of the holders of not less than a majority in aggregate
principal amount of the Debentures at the time outstanding, as defined in the
Indenture, to execute supplemental indentures for the purpose of adding any
provisions to or changing in any manner or eliminating any of the provisions of
the Indenture or of any supplemental indenture or of modifying in any manner the
rights of the holders of the Debentures; provided, however, that no such
supplemental indenture shall (i) extend the fixed

                                      A-6
<PAGE>

maturity of the Debentures except as provided in the Indenture, or reduce the
principal amount thereof, or reduce the rate or extend the time of payment of
interest thereon, without the consent of the holder of each Debenture so
affected; or (ii) reduce the aforesaid percentage of Debentures, the holders of
which are required to consent to any such supplemental indenture, without the
consent of the holders of each Debenture then outstanding and affected thereby.
The Indenture also contains provisions permitting the holders of a majority in
aggregate principal amount of the Debentures at the time outstanding, on behalf
of all of the holders of the Debentures, to waive any past default in the
performance of any of the covenants contained in the Indenture, or established
pursuant to the Indenture, and its consequences, except a default in the payment
of the principal of or interest on any of the Debentures. Any such consent or
waiver by the registered holder of this Debenture (unless revoked as provided in
the Indenture) shall be conclusive and binding upon such holder and upon all
future holders and owners of this Debenture and of any Debenture issued in
exchange herefor or in place hereof (whether by registration of transfer or
otherwise), irrespective of whether or not any notation of such consent or
waiver is made upon this Debenture.

     No reference herein to the Indenture and no provision of this Debenture or
of the Indenture shall alter or impair the obligation of the Company, which is
absolute and unconditional, to pay the principal and interest on this Debenture
at the time and place and at the rate and in the money herein prescribed.

     Provided certain conditions are met, the Company shall have the right at
any time during the term of the Debentures and from time to time to extend the
interest payment period of such Debentures for up to 20 consecutive quarters
(each, an "Extended Interest Payment Period"), at the end of which period the
Company shall pay all interest then accrued and unpaid (together with interest
thereon at the rate specified for the Debentures to the extent that payment of
such interest is enforceable under applicable law).  Before the termination of
any such Extended Interest Payment Period, so long as no Event of Default shall
have occurred and be continuing, the Company may further extend such Extended
Interest Payment Period, provided that such Extended Interest Payment Period
together with all such further extensions thereof shall not exceed 20
consecutive quarters, extend beyond the Stated Maturity or end on a date other
than an Interest Payment Date.  At the termination of any such Extended Interest
Payment Period and upon the payment of all accrued and unpaid interest and any
additional amounts then due and subject to the foregoing conditions, the Company
may commence a new Extended Interest Payment Period.

     As provided in the Indenture and subject to certain limitations therein set
forth, this Debenture is transferable by the registered holder hereof on the
Debenture Register of the Company, upon surrender of this Debenture for
registration of transfer at the office or agency of the Trustee accompanied by a
written instrument or instruments of transfer in form satisfactory to the
Company or the Trustee duly executed by the registered holder hereof or his
attorney duly authorized in writing, and thereupon one or more new Debentures of
authorized denominations and for the same aggregate principal amount shall be
issued to the designated transferee or transferees.  No service

                                      A-7
<PAGE>

charge shall be made for any such transfer, but the Company may require payment
of a sum sufficient to cover any tax or other governmental charge payable in
relation thereto.

     Prior to due presentment for registration of transfer of this Debenture,
the Company, the Trustee, any paying agent and the Debenture Registrar may deem
and treat the registered holder hereof as the absolute owner hereof (whether or
not this Debenture shall be overdue and notwithstanding any notice of ownership
or writing hereon made by anyone other than the Debenture Registrar) for the
purpose of receiving payment of or on account of the principal hereof and
interest due hereon and for all other purposes, and neither the Company nor the
Trustee nor any paying agent nor any Debenture Registrar shall be affected by
any notice to the contrary.

     No recourse shall be had for the payment of the principal of or the
interest on this Debenture, or for any claim based hereon, or otherwise in
respect hereof, or based on or in respect of the Indenture, against any
incorporator, stockholder, officer or director, past, present or future, as
such, of the Company or of any predecessor or successor corporation, whether by
virtue of any constitution, statute or rule of law, or by the enforcement of any
assessment or penalty or otherwise, all such liability being, by the acceptance
hereof and as part of the consideration for the issuance hereof, expressly
waived and released.

     The Debentures are issuable only in registered form without coupons in
denominations of $10 and any integral multiple thereof.

     All terms used in this Debenture that are defined in the Indenture shall
have the meanings assigned to them in the Indenture.

                                      A-8

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