Document:

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                                                                   EXHIBIT 10.10

                              AMENDMENT NO. 2003-1

                                       TO

          PETSMART, INC. AMENDED & RESTATED DEFERRED COMPENSATION PLAN

WHEREAS, PETsMART, Inc., a Delaware corporation (the "Company"), established the
PETsMART, Inc. Amended & Restated Deferred Compensation Plan (the "Plan"),
effective March 26, 2002; and

WHEREAS, all capitalized terms used herein have the meanings set forth in the
Plan unless otherwise indicated in this amendment; and

WHEREAS, the Company desires to amend the Plan to (i) provide Participants with
the ability to offset any annual 401(k) refund amounts, by deferring a like
amount of Annual Base Salary, (ii) allow Participants to defer the amount by
which a Participant's 401(k) deferrals are involuntarily reduced by the Company
for any Plan Year; (iii) revise the deferral of Bonus/Incentive so that
Participants may defer Bonus/Incentive that are payable to a Participant during
a Plan Year; and (iv) define the Committee that is responsible for the
administration of the Plan; and

WHEREAS, the Company is empowered to amend the Plan pursuant to section 11.2 of
the Plan.

THEREFORE, the Company hereby amends the Plan, effective as of January 1, 2003
(the "Effective Date"), as follows:

1.   The language of Section 1.3 shall be replaced in its entirety with the
     following language:

     1.3  "Annual Deferral Amount" shall mean the total amount that a
          Participant elects to have deferred, and that is deferred, in
          accordance with Article 3, for any one Plan Year, excluding Directors
          Fees payable in Stock. In the event of a Participant's Retirement,
          Disability (if deferrals cease in accordance with Section 8.1), death
          or a Termination of Employment prior to the end of a Plan Year, such
          year's Annual Deferral Amount shall be the actual amount withheld
          prior to such event.

2.   The language of Section 1.11 shall be replaced in its entirety with the
     following language:

     1.11 "Bonus/Incentive" shall mean any cash compensation, in addition to
          Annual Base Salary, payable to a Participant during a Plan Year, under
          any Employer's bonus/incentive plans, excluding stock options.

3.   Section 3.1 shall be replaced in its entirety with the following language:

     3.1  MINIMUM AND MAXIMUM DEFERRALS.

          (a)  ANNUAL BASE SALARY, BONUS/INCENTIVE AND DIRECTOR'S FEES. For each
               Plan Year, a Participant may elect to defer his or her Annual
               Base Salary, Bonus/Incentive and/or Director's Fees in the
               following percentages for each deferral elected:

<TABLE>
<CAPTION>
                DEFERRAL                     MINIMUM AMOUNT      MAXIMUM
-----------------------------------------    --------------      -------
<S>                                          <C>                 <C>
Annual Base Salary                                  2%              75%
Bonus/Incentive                                     2%             100%
Directors Fees (payable either in cash or
Stock)                                             30%             100%
</TABLE>

<PAGE>

               If an election is made for less than the stated minimum amounts,
               or if no election is made, the amount deferred shall be zero.

          (b)  ANNUAL 401(k) REFUND OFFSET AMOUNT. For each Plan Year, a
               Participant may elect to defer from his or her Annual Base Salary
               an amount equal to 100% of a Participant's elective deferrals
               under the 401(k) Plan that are refunded to such Participant from
               the 401(k) Plan in such Plan Year as a result of
               nondiscrimination testing; provided however, if the amount
               refunded to the Participant from the 401(k) Plan is not equal to
               a whole percentage of Annual Base Salary, then the amount to be
               deferred on behalf of the Participant under this Section 3.1(b)
               from Annual Base Salary shall be rounded up or down, using normal
               rounding convention, to the nearest whole percentage of Annual
               Base Salary. Notwithstanding anything to the contrary in this
               Section 3.1(b), (i) if no election is made or an election is made
               for less than an amount equal to 100% of a Participant's elective
               deferrals under the 401(k) Plan that are refunded to such
               Participant from the 401(k) Plan in such Plan Year as a result of
               nondiscrimination testing, or (ii) if the actual amount of the
               refund of a Participant's 401(k) deferrals for such Plan Year,
               after any rounding required by this Section 3.1(b), is less than
               one percent (1%) of such Participant's Annual Base Salary, the
               amount deferred pursuant to this Section 3.1(b) shall be zero.

          (c)  ANNUAL 401(k) REDUCTION AMOUNT. For each Plan Year, a Participant
               may elect to defer from his or her Annual Base Salary an amount
               equal to 100% of the amount by which the Participant's 401(k)
               Plan elective deferral percentage for any Plan Year has been
               involuntarily reduced by the Company. This deferral, if any,
               shall be determined by multiplying the absolute percentage
               decrease in the Participant's 401(k) Plan elective deferral
               percentage for any Plan Year due to an involuntary reduction in
               such elective deferral percentage by the Company, by the
               Participant's remaining Annual Base Salary for the Plan Year. If
               an election is made for less than 100% of the amount by which a
               Participant's 401(k) Plan elective deferral percentage for any
               Plan Year has been involuntarily reduced by the Company, or if no
               election is made, the amount deferred for that Participant
               pursuant to this Section 3.1(c) shall be zero.

               For example, assume a Participant's Annual Base Salary, is
               $100,000. If he or she elects to defer 6% of his or her
               compensation into the 401(k) Plan for the Plan Year commencing
               January 1, 2003, but such Participant's 401(k) elective deferral
               percentage is reduced by the Company, effective June 1, 2003, to
               3% of the Participant's compensation, the deferral amount under
               this section 3.1(c) would be calculated by first multiplying the
               absolute percentage decrease in the Participant's 401(k) Plan
               elective deferral percentage (i.e., 3%), by his or her remaining
               Annual Base Salary for the Plan Year (i.e., $100,000 x 7/12). The
               deferral amount for such Plan Year therefore equals $1,750.

          (b)  SHORT PLAN YEAR. Notwithstanding the foregoing, if a Participant
               first becomes a Participant after the first day of a Plan Year,
               or in the case of the first Plan Year of the Plan itself, the
               minimum Annual Base Salary deferral shall be an amount equal to
               the minimum set forth above, multiplied by a fraction, the
               numerator of which is the number of complete months remaining in
               the Plan Year and the denominator of which is 12. Notwithstanding
               the foregoing, if a Participant first becomes a Participant after
               the first day of a Plan Year, or in the case of the first Plan
               Year of the Plan itself, the maximum Annual Deferral Amount
               and/or Annual Stock Deferral Amount, with respect to Annual Base
               Salary, Bonus/Incentive and Directors Fees shall be limited to
               the amount of compensation not yet earned by the Participant as
               of the date the Participant submits a Plan Agreement and Election
               Form to the Committee for acceptance.

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4.   Section 3.3 shall be replaced in its entirety with the following language:

     3.3  WITHHOLDING OF ANNUAL DEFERRAL AMOUNTS AND ANNUAL STOCK DEFERRAL
          AMOUNTS. For each Plan Year, the amount which the Participant has
          elected to defer under Section 3.1(a) which is attributable to Annual
          Base Salary shall be withheld from each regularly scheduled Annual
          Base Salary payroll period in equal amounts, as adjusted from time to
          time for increases and decreases in Annual Base Salary and the amount
          which is attributable to Bonus/Incentive and/or Directors Fees payable
          in cash shall be withheld at the time such Bonus/Incentive and/or
          Directors Fees are or otherwise would be paid to the Participant.
          Generally, the amount which the Participant has elected to defer under
          Section 3.1(b), if any, which is attributable to Annual Base Salary
          shall be withheld on a prorated basis from four (4) regularly
          scheduled Annual Base Salary payroll periods or such other period as
          the Committee deems appropriate, commencing with the first Annual Base
          Salary payroll period, or as soon as administratively practical,
          following the Participant's receipt of a forced refund of his or her
          prior year 401(k) deferrals. The amount which the Participant has
          elected to defer under Section 3.1(c), if any, which is attributable
          to Annual Base Salary shall be withheld on a prorated basis from the
          remaining regularly scheduled Annual Base Salary payroll periods
          remaining in the Plan Year, commencing with the first Annual Base
          Salary payroll period, or as soon as administratively practical,
          following the involuntary reduction in the Participant's 401(k)
          deferrals by the Company. The Annual Stock Deferral Amount shall be
          withheld at the time the deferred Stock is or otherwise would be paid
          to the Participant.

5.   Section 12.1 shall be replaced in its entirety with the following language:

     12.1 COMMITTEE DUTIES. Except as otherwise provided in this Article 12,
          this Plan shall be administered by a Committee, the members of which
          shall be appointed by the Board or its delegatee. Members of the
          Committee may be Participants under this Plan and/or members of the
          Board or a Board committee. The Committee shall have the discretion
          and authority to (i) make, amend, interpret, and enforce all
          appropriate rules and regulations for the administration of this Plan
          and (ii) decide or resolve any and all questions including
          interpretations of this Plan, as may arise in connection with the
          Plan. Any individual serving on the Committee who is a Participant
          shall not vote or act on any matter relating solely to himself or
          herself. When making a determination or calculation, the Committee
          shall be entitled to rely on information furnished by a Participant or
          the Company.

6.   Except as specifically provided in this Amendment, the remaining provisions
     of the Plan, as amended, shall remain in full force and effect.

The Company has caused this Amendment to be signed by a duly authorized officer
effective as of the Effective Date.

                           PETsMART, Inc.

                           By: /s/ Mauro Pinera
                               ---------------------------
                           Title: Vice President Performance Excellence and
                                  Rewards

                                       3<PAGE>
                                                              Exhibit 10.57
                                LEHMAN BROTHERS
                           DERIVATIVE SOLUTIONS GROUP

                      INDICATIVE CALLABLE SWAP TERM SHEET

TRADE DATE:                   4/01/2004

EFFECTIVE DATE:               4/05/2004

TERMINATION DATE:             The earlier of (i) January 15, 2014 and (ii) the
                              Optional Termination Date (as specified below)
                              subject to adjustment in accordance with the
                              Modified Following Business Day Convention

OPTIONAL TERMINATION DATE:    Party A has the option to terminate this Swap
                              Transaction effective January 15, 2009 and any
                              Business Day thereafter (the "Optional Termination
                              Date"), no later than 30 calendar days prior to
                              such Optional Termination Date. Payment with
                              respect to the Optional Termination Date will be
                              made by Party A to Party B in accordance with the
                              following schedule

<TABLE>
<CAPTION>
                             Optional Termination Date
                             -------------------------
                             From and including:         To But Excluding:     Payment:
<S>                                               <C>                   <C>
                            1/15/09                     1/15/10               3.500%
                            1/15/10                     1/15/11               2.333%
                            1/15/11                     1/15/12               1.167%
                            1/15/12                     1/15/14               0.000%
</TABLE>

NOTIONAL AMOUNT:              $100,000,000

FLOATING RATE PAYER:          CSK Auto Inc.  ("Party B")

FLOATING RATE INDEX:          6 Month USD-LIBOR-BBA (Telerate page 3750)

FLOATING RATE SPREAD:         283 bps

FLOATING RATE PAYMENT DATES:  Payable semi-annually on the 15th of each January
                              and July, beginning on July 15, 2004 to and
                              including the Termination Date subject to
                              adjustment in accordance with the Modified
                              Following Business Day Convention

FLOATING RATE PAYMENT
BUSINESS DAY CONVENTION:      Modified Following

FLOATING RATE PAYMENT DAY
COUNT:                        Actual/360

FLOATING RATE RESET DATES:    The last day of each Calculation Period

FLOATING RATE PAYMENT
BUSINESS DAYS:                New York and London

FIXED RATE PAYER:             Lehman Commerical Paper Inc.  ("LCPI"; "Party A")

FIXED RATE:                   7.00%

FIXED RATE PAYMENT DATES:     Payable semi-annually on the 15th of each January
                              and July, beginning on July 15, 2004 to and
                              including the Termination Date

FIXED RATE PAYMENT BUSINESS
DAY CONVENTION:               Modified Following

FIXED RATE PAYMENT DAY COUNT: 30/360

PERIOD END DATES:             Unadjusted

FIXED RATE PAYMENT BUSINESS
DAYS:                         New York and London

DOCUMENTATION:                Executed ISDA

                                        1

<PAGE>
                                LEHMAN BROTHERS

                           DERIVATIVE SOLUTIONS GROUP

ADDITIONAL REPRESENTATION:    Party B hereby represents to Party A that the
                              execution, delivery and performance by Party B of
                              this Transaction have been duly authorized by
                              Party B's board of directors and the terms of this
                              Transaction are substantially consistent with the
                              provisions of such board's Action by Unanimous
                              Written Consent dated March 2004.

ADDITIONAL TERMINATION EVENT: Party B's swap obligations fail to be secured and
                              guaranteed on a pari passu basis with the Loans
                              under the Credit Documents.

                              Party B fails to deliver a signed ISDA Master
                              Agreement satisfactory to Party A within 45
                              calender of the Trade Date

PAYMENT AGENT:                Lehman Brothers Special Financing Inc. ("LBSF")
                              shall act as Payment Agent for Party A hereunder.
                              LBSF shall act solely as agent and not in its
                              individual capacity and shall have no liability
                              hereunder.

                              ONLY WITH RESPECT TO "ADDITIONAL TERMINATION
                              EVENTS" AND "ADDITIONAL REPRESENTATION,"

                              AGREED & ACKNOWLEDGED BY:

                              CSK Auto Inc.

Counterparties are advised to make an independent review and reach their own
conclusions regarding the economic risks and benefits of a proposed transaction
and the legal, credit, tax, accounting and other aspects of such transaction in
relation to their particular circumstances. Lehman Brothers enters into
over-the-counter derivatives transactions with counterparties on an arm's length
basis and does not act as an advisor or fiduciary to its counterparties except
where a law, rule or written agreement expressly provides otherwise. The terms
set out are indicative, are subject to change without notice, and are not meant
to be, nor should be construed as, an offer or a solicitation of an offer to
enter a proposed transaction or an attempt to define all of the terms and
conditions of a proposed transaction. Although the indicative information set
forth is reflective of the economic terms, as of the specified date, under which
Lehman Brothers believes a transaction might be structured, no assurance can be
given that such a transaction could, in fact, be executed at the levels
specified and Lehman Brothers makes no representation as to the accuracy or
completeness of any information contained herein or otherwise provided. A
confirmation containing the complete and final terms of an executed swap
transaction (which shall govern over any inconsistent terms contained herein)
will be delivered following execution of that transaction. The information,
including structures, contained herein and provided to you related hereto is
confidential and you agree, except as permitted in writing by Lehman Brothers,
to only disclose such information to employees, advisors and attorneys and only
for purposes of, and such information may only be used for, evaluation of the
proposed transaction.

                                      2

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