Document:

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                                                                   EXHIBIT 10.17

                          COMMERCIAL SECURITY AGREEMENT

<TABLE>
<CAPTION>
  PRINCIPAL     LOAN DATE    MATURITY    LOAN NO    CALL / COLL    ACCOUNT   OFFICER   INITIALS
<S>             <C>         <C>          <C>        <C>            <C>       <C>       <C>
$ 1,000,000.00  04-29-2005  05-02-2006   70000105     0344          2990       KO
</TABLE>

  References in the shaded area are for Lender's use only and do not limit the
         applicability of this document to any particular loan or item.
Any item above containing "***" has been omitted due to text length limitations.

GRANTOR:  MEDAIRE, INC.                          LENDER: DESERT HILLS BANK
          80 EAST RIO SALADO PARKWAY, SUITE 610          3001 E. CAMELBACK ROAD
          TEMPE, AZ 85281                                PHOENIX, AZ 85016

THIS COMMERCIAL SECURITY AGREEMENT DATED APRIL 29, 2005, IS MADE AND EXECUTED
BETWEEN MEDAIRE, INC. ("GRANTOR") AND DESERT HILLS BANK ("LENDER").

GRANT OF SECURITY INTEREST. FOR VALUABLE CONSIDERATION, GRANTOR GRANTS TO LENDER
A SECURITY INTEREST IN THE COLLATERAL TO SECURE THE INDEBTEDNESS AND AGREES THAT
LENDER SHALL HAVE THE RIGHTS STATED IN THIS AGREEMENT WITH RESPECT TO THE
COLLATERAL, IN ADDITION TO ALL OTHER RIGHTS WHICH LENDER MAY HAVE BY LAW.

COLLATERAL DESCRIPTION. The word "Collateral" as used in this Agreement means
the following described property, whether now owned or hereafter acquired,
whether now existing or hereafter arising, and wherever located, in which
Grantor is giving to Lender a security interest for the payment of the
Indebtedness and performance of all other obligations under the Note and this
Agreement:

ALL INVENTORY, CHATTEL PAPER, ACCOUNTS, EQUIPMENT AND GENERAL INTANGIBLES

In addition, the word "Collateral" also includes all the following, whether now
owned or hereafter acquired, whether now existing or hereafter arising, and
wherever located:

      (A) All accessions, attachments, accessories, tools, parts, supplies,
      replacements of and additions to any of the collateral described herein,
      whether added now or later.

      (B) All products and produce of any of the property described in this
      Collateral section.

      (C) All accounts, general intangibles, instruments, rents, monies,
      payments, and all other rights, arising out of a sale, lease, consignment
      or other disposition of any of the property described in this Collateral
      section.

      (D) All proceeds (including insurance proceeds) from the sale,
      destruction, loss, or other disposition of any of the property described
      in this Collateral section, and sums due from a third party who has
      damaged or destroyed the Collateral or from that party's insurer, whether
      due to judgment, settlement or other process.

      (E) All records and data relating to any of the property described in this
      Collateral section, whether in the form of a writing, photograph,
      microfilm, microfiche, or electronic media, together with all of Grantor's
      right, title, and interest in and to all computer software required to
      utilize, create, maintain, and process any such records or data on
      electronic media.

FUTURE ADVANCES. In addition to the Note, this Agreement secures all future
advances made by Lender to Grantor regardless of whether the advances are made
a) pursuant to a commitment or b) for the same purposes.

RIGHT OF SETOFF. To the extent permitted by applicable law, Lender reserves a
right of setoff in all Grantor's accounts with Lender (whether checking,
savings, or some other account). This includes all accounts Grantor holds
jointly with someone else and all accounts Grantor may open in the future.
However, this does not include any IRA or Keogh accounts, or any trust accounts
for which setoff would be prohibited by law. Grantor authorizes Lender, to the
extent permitted by applicable law, to charge or setoff all sums owing on the
Indebtedness against any and all such accounts, and, at Lender's option, to
administratively freeze all such accounts to allow Lender to protect Lender's
charge and setoff rights provided in this paragraph.

GRANTOR'S REPRESENTATIONS AND WARRANTIES WITH RESPECT TO THE COLLATERAL. With
respect to the Collateral, Grantor represents and promises to Lender that:

      PERFECTION OF SECURITY INTEREST. Grantor agrees to take whatever actions
      are requested by Lender to perfect and continue Lender's security interest
      in the Collateral. Upon request of Lender, Grantor will deliver to Lender
      any and all of the documents evidencing or constituting the Collateral,
      and Grantor will note Lender's interest upon any and all chattel paper and
      instruments if not delivered to Lender for possession by Lender. THIS IS A
      CONTINUING SECURITY AGREEMENT AND WILL CONTINUE IN EFFECT EVEN THOUGH ALL
      OR ANY PART OF THE INDEBTEDNESS IS PAID IN FULL AND EVEN THOUGH FOR A
      PERIOD OF TIME GRANTOR MAY NOT BE INDEBTED TO LENDER.

      NOTICES TO LENDER. Grantor will promptly notify Lender in writing at
      Lender's address shown above (or such other addresses as Lender may
      designate from time to time) prior to any (1) change in Grantor's name;
      (2) change in Grantor's assumed business name(s); (3) change in the
      management of the Corporation Grantor; (4) change in the authorized
      signer(s); (5) change in Grantor's principal office address; (6) change in
      Grantor's state of organization; (7) conversion of Grantor to a new or
      different type of business entity; or (8) change in any other aspect of
      Grantor that directly or indirectly relates to any agreements between
      Grantor and Lender. No change in Grantor's name or state of organization
      will take effect until after Lender has received notice.

      NO VIOLATION. The execution and delivery of this Agreement will not
      violate any law or agreement governing Grantor or to which Grantor is a
      party, and its certificate or articles of incorporation and bylaws do not
      prohibit any term or condition of this Agreement.

      ENFORCEABILITY OF COLLATERAL. To the extent the Collateral consists of
      accounts, chattel paper, or general intangibles, as defined by the Uniform
      Commercial Code, the Collateral is enforceable in accordance with its
      terms, is genuine, and fully complies with all applicable laws and
      regulations concerning form, content and manner of preparation and
      execution, and all persons appearing to be obligated on the Collateral
      have authority and capacity to contract and are in fact obligated as they
      appear to be on the Collateral. At the time any account becomes subject to
      a security interest in favor of Lender, the account shall be a good and
      valid account representing an undisputed, bona fide indebtedness incurred
      by the account debtor, for merchandise held subject to delivery
      instructions or previously shipped or delivered pursuant to a contract of
      sale, or for services previously performed by Grantor with or for the
      account debtor. So long as this Agreement remains in effect, Grantor shall
      not, without Lender's prior written consent, compromise, settle, adjust,
      or extend payment under or with regard to any such Accounts. There shall
      be no setoffs or counterclaims against any of

<PAGE>

                          COMMERCIAL SECURITY AGREEMENT
                                  (CONTINUED)
Loan No: 70000105                                                         PAGE 2

      the Collateral, and no agreement shall have been made under which any
      deductions or discounts may be claimed concerning the Collateral except
      those disclosed to Lender in writing.

      LOCATION OF THE COLLATERAL. Except in the ordinary course of Grantor's
      business, Grantor agrees to keep the Collateral (or to the extent the
      Collateral consists of intangible property such as accounts or general
      intangibles, the records concerning the Collateral) at Grantor's address
      shown above or at such other locations as are acceptable to Lender. Upon
      Lender's request, Grantor will deliver to Lender in form satisfactory to
      Lender a schedule of real properties and Collateral locations relating to
      Grantor's operations, including without limitation the following: (1) all
      real property Grantor owns or is purchasing; (2) all real property Grantor
      is renting or leasing; (3) all storage facilities Grantor owns, rents,
      leases, or uses; and (4) all other properties where Collateral is or may
      be located.

      REMOVAL OF THE COLLATERAL. Except in the ordinary course of Grantor's
      business, including the sales of inventory, Grantor shall not remove the
      Collateral from its existing location without Lender's prior written
      consent. To the extent that the Collateral consists of vehicles, or other
      titled property, Grantor shall not take or permit any action which would
      require application for certificates of title for the vehicles outside the
      State of Arizona, without Lender's prior written consent. Grantor shall,
      whenever requested, advise Lender of the exact location of the Collateral.

      TRANSACTIONS INVOLVING COLLATERAL. Except for inventory sold or accounts
      collected in the ordinary course of Grantor's business, or as otherwise
      provided for in this Agreement, Grantor shall not sell, offer to sell, or
      otherwise transfer or dispose of the Collateral. While Grantor is not in
      default under this Agreement, Grantor may sell inventory, but only in the
      ordinary course of its business and only to buyers who qualify as a buyer
      in the ordinary course of business. A sale in the ordinary course of
      Grantor's business does not include a transfer in partial or total
      satisfaction of a debt or any bulk sale. Grantor shall not pledge,
      mortgage, encumber or otherwise permit the Collateral to be subject to any
      lien, security interest, encumbrance, or charge, other than the security
      interest provided for in this Agreement, without the prior written consent
      of Lender. This includes security interests even if junior in right to the
      security interests granted under this Agreement. Unless waived by Lender,
      all proceeds from any disposition of the Collateral (for whatever reason)
      shall be held in trust for Lender and shall not be commingled with any
      other funds; provided however, this requirement shall not constitute
      consent by Lender to any sale or other disposition. Upon receipt, Grantor
      shall immediately deliver any such proceeds to Lender.

      TITLE. Grantor represents and warrants to Lender that Grantor holds good
      and marketable title to the Collateral, free and clear of all liens and
      encumbrances except for the lien of this Agreement. No financing statement
      covering any of the Collateral is on file in any public office other than
      those which reflect the security interest created by this Agreement or to
      which Lender has specifically consented. Grantor shall defend Lender's
      rights in the Collateral against the claims and demands of all other
      persons.

      REPAIRS AND MAINTENANCE. Grantor agrees to keep and maintain, and to cause
      others to keep and maintain, the Collateral in good order, repair and
      condition at all times while this Agreement remains in effect. Grantor
      further agrees to pay when due all claims for work done on, or services
      rendered or material furnished in connection with the Collateral so that
      no lien or encumbrance may ever attach to or be filed against the
      Collateral.

      INSPECTION OF COLLATERAL. Lender and Lender's designated representatives
      and agents shall have the right at all reasonable times to examine and
      inspect the Collateral wherever located.

      TAXES, ASSESSMENTS AND LIENS. Grantor will pay when due all taxes,
      assessments and liens upon the Collateral, its use or operation, upon this
      Agreement, upon any promissory note or notes evidencing the Indebtedness,
      or upon any of the other Related Documents. Grantor may withhold any such
      payment or may elect to contest any lien if Grantor is in good faith
      conducting an appropriate proceeding to contest the obligation to pay and
      so long as Lender's interest in the Collateral is not jeopardized in
      Lender's sole opinion. If the Collateral is subjected to a lien which is
      not discharged within fifteen (15) days, Grantor shall deposit with Lender
      cash, a sufficient corporate surety bond or other security satisfactory to
      Lender in an amount adequate to provide for the discharge of the lien plus
      any interest, costs, attorneys' fees or other charges that could accrue as
      a result of foreclosure or sale of the Collateral. In any contest Grantor
      shall defend itself and Lender and shall satisfy any final adverse
      judgment before enforcement against the Collateral. Grantor shall name
      Lender as an additional obligee under any surety bond furnished in the
      contest proceedings. Grantor further agrees to furnish Lender with
      evidence that such taxes, assessments, and governmental and other charges
      have been paid in full and in a timely manner. Grantor may withhold any
      such payment or may elect to contest any lien if Grantor is in good faith
      conducting an appropriate proceeding to contest the obligation to pay and
      so long as Lender's interest in the Collateral is not jeopardized.

      COMPLIANCE WITH GOVERNMENTAL REQUIREMENTS. Grantor shall comply promptly
      with all laws, ordinances, rules and regulations of all governmental
      authorities, now or hereafter in effect, applicable to the ownership,
      production, disposition, or use of the Collateral, including all laws or
      regulations relating to the undue erosion of highly-erodible land or
      relating to the conversion of wetlands for the production of an
      agricultural product or commodity. Grantor may contest in good faith any
      such law, ordinance or regulation and withhold compliance during any
      proceeding, including appropriate appeals, so long as Lender's interest in
      the Collateral, in Lender's opinion, is riot jeopardized.

      HAZARDOUS SUBSTANCES. Grantor represents and warrants that the Collateral
      never has been, and never will be so long as this Agreement remains a lien
      on the Collateral, used in violation of any Environmental Laws or for the
      generation, manufacture, storage, transportation, treatment, disposal,
      release or threatened release of any Hazardous Substance. The
      representations and warranties contained herein are based on Grantor's due
      diligence in investigating the Collateral for Hazardous Substances.
      Grantor hereby (1) releases and waives any future claims against Lender
      for indemnity or contribution in the event Grantor becomes liable for
      cleanup or other costs under any Environmental Laws, and (2) agrees to
      indemnify and hold harmless Lender against any and all claims and losses
      resulting from a breach of this provision of this Agreement. This
      obligation to indemnify shall survive the payment of the Indebtedness and
      the satisfaction of this Agreement.

      MAINTENANCE OF CASUALTY INSURANCE. Grantor shall procure and maintain all
      risks insurance, including without limitation fire, theft and liability
      coverage together with such other insurance as Lender may require with
      respect to the Collateral, in form, amounts, coverages and basis
      reasonably acceptable to Lender and issued by a company or companies
      reasonably acceptable to Lender. Grantor, upon request of Lender, will
      deliver to Lender from time to time the policies or certificates of
      insurance in form satisfactory to Lender, including stipulations that
      coverages will not be cancelled or

<PAGE>

                          COMMERCIAL SECURITY AGREEMENT
                                  (CONTINUED)
Loan No: 70000105                                                         PAGE 3

      diminished without at least forty-five (45) days' prior written notice to
      Lender and not including any disclaimer of the insurer's liability for
      failure to give such a notice. Each insurance policy also shall include an
      endorsement providing that coverage in favor of Lender will not be
      impaired in any way by any act, omission or default of Grantor or any
      other person. In connection with all policies covering assets in which
      Lender holds or is offered a security interest, Grantor will provide
      Lender with such loss payable or other endorsements as Lender may require.
      If Grantor at any time fails to obtain or maintain any insurance as
      required under this Agreement, Lender may (but shall not be obligated to)
      obtain such insurance as Lender deems appropriate, including if Lender so
      chooses "single interest insurance," which will cover only Lender's
      interest in the Collateral.

      APPLICATION OF INSURANCE PROCEEDS. Grantor shall promptly notify Lender of
      any loss or damage to the Collateral if the estimated cost of repair or
      replacement exceeds $$$$$5,000.00, whether or not such casualty or loss is
      covered by insurance. Lender may make proof of loss if Grantor fails to do
      so within fifteen (15) days of the casualty. All proceeds of any insurance
      on the Collateral, including accrued proceeds thereon, shall be held by
      Lender as part of the Collateral. If Lender consents to repair or
      replacement of the damaged or destroyed Collateral, Lender shall, upon
      satisfactory proof of expenditure, pay or reimburse Grantor from the
      proceeds for the reasonable cost of repair or restoration. If Lender does
      not consent to repair or replacement of the Collateral, Lender shall
      retain a sufficient amount of the proceeds to pay all of the Indebtedness,
      and shall pay the balance to Grantor. Any proceeds which have not been
      disbursed within six (6) months after their receipt and which Grantor has
      not committed to the repair or restoration of the Collateral shall be used
      to prepay the Indebtedness.

      INSURANCE RESERVES. Lender may require Grantor to maintain with Lender
      reserves for payment of insurance premiums, which reserves shall be
      created by monthly payments from Grantor of a sum estimated by Lender to
      be sufficient to produce, at least fifteen (15) days before the premium
      due date, amounts at least equal to the insurance premiums to be paid. If
      fifteen (15) days before payment is due, the reserve funds are
      insufficient, Grantor shall upon demand pay any deficiency to Lender. The
      reserve funds shall be held by Lender as a general deposit and shall
      constitute a non-interest-bearing account which Lender may satisfy by
      payment of the insurance premiums required to be paid by Grantor as they
      become due. Lender does not hold the reserve funds in trust for Grantor,
      and Lender is not the agent of Grantor for payment of the insurance
      premiums required to be paid by Grantor. The responsibility for the
      payment of premiums shall remain Grantor's sole responsibility.

      INSURANCE REPORTS. Grantor, upon request of Lender, shall furnish to
      Lender reports on each existing policy of insurance showing such
      information as Lender may reasonably request including the following: (1)
      the name of the insurer; (2) the risks insured; (3) the amount of the
      policy; (4) the property insured; (5) the then current value on the basis
      of which insurance has been obtained and the manner of determining that
      value; and (6) the expiration date of the policy. In addition, Grantor
      shall upon request by Lender (however not more often than annually) have
      an independent appraiser satisfactory to Lender determine, as applicable,
      the cash value or replacement cost of the Collateral.

      FINANCING STATEMENTS. Grantor authorizes Lender to file a UCC financing
      statement, or alternatively, a copy of this Agreement to perfect Lender's
      security interest. At Lender's request, Grantor additionally agrees to
      sign all other documents that are necessary to perfect, protect, and
      continue Lender's security interest in the Property. Grantor will pay all
      filing fees, title transfer fees, and other fees and costs involved unless
      prohibited by law or unless Lender is required by law to pay such fees and
      costs. Grantor irrevocably appoints Lender to execute documents necessary
      to transfer title if there is a default. Lender may file a copy of this
      Agreement as a financing statement. If Grantor changes Grantor's name or
      address, or the name or address of any person granting a security interest
      under this Agreement changes, Grantor will promptly notify the Lender of
      such change.

GRANTOR'S RIGHT TO POSSESSION AND TO COLLECT ACCOUNTS. Until default and except
as otherwise provided below with respect to accounts, Grantor may have
possession of the tangible personal property and beneficial use of all the
Collateral and may use it in any lawful manner not inconsistent with this
Agreement or the Related Documents, provided that Grantor's right to possession
and beneficial use shall not apply to any Collateral where possession of the
Collateral by Lender is required by law to perfect Lender's security interest in
such Collateral. Until otherwise notified by Lender, Grantor may collect any of
the Collateral consisting of accounts. At any time and even though no Event of
Default exists, Lender may exercise its rights to collect the accounts and to
notify account debtors to make payments directly to Lender for application to
the Indebtedness. If Lender at any time has possession of any Collateral,
whether before or after an Event of Default, Lender shall be deemed to have
exercised reasonable care in the custody and preservation of the Collateral if
Lender takes such action for that purpose as Grantor shall request or as Lender,
in Lender's sole discretion, shall deem appropriate under the circumstances, but
failure to honor any request by Grantor shall not of itself be deemed to be a
failure to exercise reasonable care. Lender shall not be required to take any
steps necessary to preserve any rights in the Collateral against prior parties,
nor to protect, preserve or maintain any security interest given to secure the
Indebtedness.

LENDER'S EXPENDITURES. If any action or proceeding is commenced that would
materially affect Lender's interest in the Collateral or if Grantor fails to
comply with any provision of this Agreement or any Related Documents, including
but not limited to Grantor's failure to discharge or pay when due any amounts
Grantor is required to discharge or pay under this Agreement or any Related
Documents, Lender on Grantor's behalf may (but shall not be obligated to) take
any action that Lender deems appropriate, to the extent permitted by applicable
law, including but not limited to discharging or paying all taxes, liens,
security interests, encumbrances and other claims, at any time levied or placed
on the Collateral and paying all costs for insuring, maintaining and preserving
the Collateral. All such expenditures incurred or paid by Lender for such
purposes will then bear interest at the rate charged under the Note from the
date incurred or paid by Lender to the date of repayment by Grantor. All such
expenses will become a part of the Indebtedness and, at Lender's option, will
(A) be payable on demand; (B) be added to the balance of the Note and be
apportioned among and be payable with any installment payments to become due
during either (1) the term of any applicable insurance policy; or (2) the
remaining term of the Note; or (C) be treated as a balloon payment which will be
due and payable at the Note's maturity. The Agreement also will secure payment
of these amounts. Such right shall be in addition to all other rights and
remedies to which Lender may be entitled upon Default and shall be exercisable
by Lender to the extent permitted by applicable law.

DEFAULT. Each of the following shall constitute an Event of Default under this
Agreement: Payment Default. Grantor fails to make any payment when due under the
Indebtedness.

<PAGE>

                          COMMERCIAL SECURITY AGREEMENT
                                  (CONTINUED)
Loan No: 70000105                                                         PAGE 4

      OTHER DEFAULTS. Grantor fails to comply with or to perform any other term,
      obligation, covenant or condition contained in this Agreement or in any of
      the Related Documents or to comply with or to perform any term,
      obligation, covenant or condition contained in any other agreement between
      Lender and Grantor.

      DEFAULT IN FAVOR OF THIRD PARTIES. Should Borrower or any Grantor default
      under any loan, extension of credit, security agreement, purchase or sales
      agreement, or any other agreement, in favor of any other creditor or
      person that may materially affect any of Grantor's property or Grantor's
      or any Grantor's ability to repay the Indebtedness or perform their
      respective obligations under this Agreement or any of the Related
      Documents.

      FALSE STATEMENTS. Any warranty, representation or statement made or
      furnished to Lender by Grantor or on Grantor's behalf under this Agreement
      or the Related Documents is false or misleading in any material respect,
      either now or at the time made or furnished or becomes false or misleading
      at any time thereafter.

      DEFECTIVE COLLATERALIZATION. This Agreement or any of the Related
      Documents ceases to be in full force and effect (including failure of any
      collateral document to create a valid and perfected security interest or
      lien) at any time and for any reason.

      INSOLVENCY. The dissolution or termination of Grantor's existence as a
      going business, the insolvency of Grantor, the appointment of a receiver
      for any part of Grantor's property, any assignment for the benefit of
      creditors, any type of creditor workout, or the commencement of any
      proceeding under any bankruptcy or insolvency laws by or against Grantor.

      CREDITOR OR FORFEITURE PROCEEDINGS. Commencement of foreclosure or
      forfeiture proceedings, whether by judicial proceeding, self-help,
      repossession or any other method, by any creditor of Grantor or by any
      governmental agency against any collateral securing the Indebtedness. This
      includes a garnishment of any of Grantor's accounts, including deposit
      accounts, with Lender. However, this Event of Default shall not apply if
      there is a good faith dispute by Grantor as to the validity or
      reasonableness of the claim which is the basis of the creditor or
      forfeiture proceeding and if Grantor gives Lender written notice of the
      creditor or forfeiture proceeding and deposits with Lender monies or a
      surety bond for the creditor or forfeiture proceeding, in an amount
      determined by Lender, in its sole discretion, as being an adequate reserve
      or bond for the dispute.

      EVENTS AFFECTING GUARANTOR. Any of the preceding events occurs with
      respect to any guarantor, endorser, surety, or accommodation party of any
      of the Indebtedness or guarantor, endorser, surety, or accommodation party
      dies or becomes incompetent or revokes or disputes the validity of, or
      liability under, any Guaranty of the Indebtedness.

      ADVERSE CHANGE. A material adverse change occurs in Grantor's financial
      condition, or Lender believes the prospect of payment or performance of
      the Indebtedness is impaired.

      INSECURITY. Lender in good faith believes itself insecure.

      CURE PROVISIONS. If any default, other than a default in payment is
      curable and if Grantor has not been given a notice of a breach of the same
      provision of this Agreement within the preceding twelve (12) months, it
      may be cured if Grantor, after receiving written notice from Lender
      demanding cure of such default: (1) cures the default within fifteen (15)
      days; or (2) if the cure requires more than fifteen (15) days, immediately
      initiates steps which Lender deems in Lender's sole discretion to be
      sufficient to cure the default and thereafter continues and completes all
      reasonable and necessary steps sufficient to produce compliance as soon as
      reasonably practical.

RIGHTS AND REMEDIES ON DEFAULT. If an Event of Default occurs under this
Agreement, at any time thereafter, Lender shall have all the rights of a secured
party under the Arizona Uniform Commercial Code. In addition and without
limitation, Lender may exercise any one or more of the following rights and
remedies:

      ACCELERATE INDEBTEDNESS. Lender may declare the entire Indebtedness,
      including any prepayment penalty which Grantor would be required to pay,
      immediately due and payable, without notice of any kind to Grantor.

      ASSEMBLE COLLATERAL. Lender may require Grantor to deliver to Lender all
      or any portion of the Collateral and any and all certificates of title and
      other documents relating to the Collateral. Lender may require Grantor to
      assemble the Collateral and make it available to Lender at a place to be
      designated by Lender. Lender also shall have full power to enter upon the
      property of Grantor to take possession of and remove the Collateral. If
      the Collateral contains other goods not covered by this Agreement at the
      time of repossession, Grantor agrees Lender may take such other goods,
      provided that Lender makes reasonable efforts to return them to Grantor
      after repossession.

      SELL THE COLLATERAL. Lender shall have full power to sell, lease,
      transfer, or otherwise deal with the Collateral or proceeds thereof in
      Lender's own name or that of Grantor. Lender may sell the Collateral at
      public auction or private sale. Unless the Collateral threatens to decline
      speedily in value or is of a type customarily sold on a recognized market,
      Lender will give Grantor, and other persons as required by law, reasonable
      notice of the time and place of any public sale, or the time after which
      any private sale or any other disposition of the Collateral is to be made.
      However, no notice need be provided to any person who, after Event of
      Default occurs, enters into and authenticates an agreement waiving that
      person's right to notification of sale. The requirements of reasonable
      notice shall be met if such notice is given at least ten (10) days before
      the time of the sale or disposition. All expenses relating to the
      disposition of the Collateral, including without limitation the expenses
      of retaking, holding, insuring, preparing for sale and selling the
      Collateral, shall become a part of the Indebtedness secured by this
      Agreement and shall be payable on demand, with interest at the Note rate
      from date of expenditure until repaid.

      APPOINT RECEIVER. Lender shall have the right to have a receiver appointed
      to take possession of all or any part of the Collateral, with the power to
      protect and preserve the Collateral, to operate the Collateral preceding
      foreclosure or sale, and to collect the Rents from the Collateral and
      apply the proceeds, over and above the cost of the receivership, against
      the Indebtedness. The receiver may serve without bond if permitted by law.
      Lender's right to the appointment of a receiver shall exist whether or not
      the apparent value of the Collateral exceeds the Indebtedness by a
      substantial amount. Employment by Lender shall not disqualify a person
      from serving as a receiver.

      COLLECT REVENUES, APPLY ACCOUNTS. Lender, either itself or through a
      receiver, may collect the payments, rents, income, and revenues from the
      Collateral. Lender may at any time in Lender's discretion transfer any
      Collateral into Lender's own name or that of Lender's nominee and receive
      the payments, rents, income, and revenues therefrom and

<PAGE>

                          COMMERCIAL SECURITY AGREEMENT
                                  (CONTINUED)
Loan No: 70000105                                                         PAGE 5

      hold the same as security for the Indebtedness or apply it to payment of
      the Indebtedness in such order of preference as Lender may determine.
      Insofar as the Collateral consists of accounts, general intangibles,
      insurance policies, instruments, chattel paper, choses in action, or
      similar property, Lender may demand, collect, receipt for, settle,
      compromise, adjust, sue for, foreclose, or realize on the Collateral as
      Lender may determine, whether or not Indebtedness or Collateral is then
      due. For these purposes, Lender may, on behalf of and in the name of
      Grantor, receive, open and dispose of mail addressed to Grantor; change
      any address to which mail and payments are to be sent; and endorse notes,
      checks, drafts, money orders, documents of title, instruments and items
      pertaining to payment, shipment, or storage of any Collateral. To
      facilitate collection, Lender may notify account debtors and obligors on
      any Collateral to make payments directly to Lender.

      OBTAIN DEFICIENCY. If Lender chooses to sell any or all of the Collateral,
      Lender may obtain a judgment against Grantor for any deficiency remaining
      on the Indebtedness due to Lender after application of all amounts
      received from the exercise of the rights provided in this Agreement.
      Grantor shall be liable for a deficiency even if the transaction described
      in this subsection is a sale of accounts or chattel paper.

      OTHER RIGHTS AND REMEDIES. Lender shall have all the rights and remedies
      of a secured creditor under the provisions of the Uniform Commercial Code,
      as may be amended from time to time. In addition, Lender shall have and
      may exercise any or all other rights and remedies it may have available at
      law, in equity, or otherwise.

      ELECTION OF REMEDIES. Except as may be prohibited by applicable law, all
      of Lender's rights and remedies, whether evidenced by this Agreement, the
      Related Documents, or by any other writing, shall be cumulative and may be
      exercised singularly or concurrently. Election by Lender to pursue any
      remedy shall not exclude pursuit of any other remedy, and an election to
      make expenditures or to take action to perform an obligation of Grantor
      under this Agreement, after Grantor's failure to perform, shall not affect
      Lender's right to declare a default and exercise its remedies.

MISCELLANEOUS PROVISIONS. The following miscellaneous provisions are a part of
this Agreement:

      AMENDMENTS. This Agreement, together with any Related Documents,
      constitutes the entire understanding and agreement of the parties as to
      the matters set forth in this Agreement. No alteration of or amendment to
      this Agreement shall be effective unless given in writing and signed by
      the party or parties sought to be charged or bound by the alteration or
      amendment.

      ATTORNEYS' FEES; EXPENSES. Grantor agrees to pay upon demand all of
      Lender's costs and expenses, including Lender's attorneys' fees and
      Lender's legal expenses, incurred in connection with the enforcement of
      this Agreement. Lender may hire or pay someone else to help enforce this
      Agreement, and Grantor shall pay the costs and expenses of such
      enforcement. Costs and expenses include Lender's attorneys' fees and legal
      expenses whether or not there is a lawsuit, including attorneys' fees and
      legal expenses for bankruptcy proceedings (including efforts to modify or
      vacate any automatic stay or injunction), appeals, and any anticipated
      post-judgment collection services. However, Grantor will only pay
      attorneys' fees of an attorney not Lender's salaried employee, to whom the
      matter is referred after Grantor's default. Grantor also shall pay all
      court costs and such additional fees as may be directed by the court.

      CAPTION HEADINGS. Caption headings in this Agreement are for convenience
      purposes only and are not to be used to interpret or define the provisions
      of this Agreement.

      GOVERNING LAW. THIS AGREEMENT WILL BE GOVERNED BY FEDERAL LAW APPLICABLE
      TO LENDER AND, TO THE EXTENT NOT PREEMPTED BY FEDERAL LAW, THE LAWS OF THE
      STATE OF ARIZONA WITHOUT REGARD TO ITS CONFLICTS OF LAW PROVISIONS. THIS
      AGREEMENT HAS BEEN ACCEPTED BY LENDER IN THE STATE OF ARIZONA.

      CHOICE OF VENUE. If there is a lawsuit, Grantor agrees upon Lender's
      request to submit to the jurisdiction of the courts of MARICOPA County,
      State of Arizona.

      NO WAIVER BY LENDER. Lender shall not be deemed to have waived any rights
      under this Agreement unless such waiver is given in writing and signed by
      Lender. No delay or omission on the part of Lender in exercising any right
      shall operate as a waiver of such right or any other right. A waiver by
      Lender of a provision of this Agreement shall not prejudice or constitute
      a waiver of Lender's right otherwise to demand strict compliance with that
      provision or any other provision of this Agreement. No prior waiver by
      Lender, nor any course of dealing between Lender and Grantor, shall
      constitute a waiver of any of Lender's rights or of any of Grantor's
      obligations as to any future transactions. Whenever the consent of Lender
      is required under this Agreement, the granting of such consent by Lender
      in any instance shall not constitute continuing consent to subsequent
      instances where such consent is required and in all cases such consent may
      be granted or withheld in the sole discretion of Lender.

      NOTICES. Any notice required to be given under this Agreement shall be
      given in writing, and shall be effective when actually delivered, when
      actually received by telefacsimile (unless otherwise required by law),
      when deposited with a nationally recognized overnight courier, or, if
      mailed, when deposited in the United States mail, as first class,
      certified or registered mail postage prepaid, directed to the addresses
      shown near the beginning of this Agreement. Any party may change its
      address for notices under this Agreement by giving formal written notice
      to the other parties, specifying that the purpose of the notice is to
      change the party's address. For notice purposes, Grantor agrees to keep
      Lender informed at all times of Grantor's current address. Unless
      otherwise provided or required by law, if there is more than one Grantor,
      any notice given by Lender to any Grantor is deemed to be notice given to
      all Grantors.

      POWER OF ATTORNEY. Grantor hereby appoints Lender as Grantor's irrevocable
      attorney-in-fact for the purpose of executing any documents necessary to
      perfect, amend, or to continue the security interest granted in this
      Agreement or to demand termination of filings of other secured parties.
      Lender may at any time, and without further authorization from Grantor,
      file a carbon, photographic or other reproduction of any financing
      statement or of this Agreement for use as a financing statement. Grantor
      will reimburse Lender for all expenses for the perfection and the
      continuation of the perfection of Lender's security interest in the
      Collateral.

      SEVERABILITY. If a court of competent jurisdiction finds any provision of
      this Agreement to be illegal, invalid, or unenforceable as to any
      circumstance, that finding shall not make the offending provision illegal,
      invalid, or unenforceable as to any other circumstance. If feasible, the
      offending provision shall be considered modified so that it becomes legal,
      valid and enforceable. If the offending provision cannot be so modified,
      it shall be considered deleted

<PAGE>

                          COMMERCIAL SECURITY AGREEMENT
                                  (CONTINUED)
Loan No: 70000105                                                         PAGE 6

      from this Agreement. Unless otherwise required by law, the illegality,
      invalidity, or unenforceability of any provision of this Agreement shall
      not affect the legality, validity or enforceability of any other provision
      of this Agreement.

      SUCCESSORS AND ASSIGNS. Subject to any limitations stated in this
      Agreement on transfer of Grantor's interest, this Agreement shall be
      binding upon and inure to the benefit of the parties, their successors and
      assigns. If ownership of the Collateral becomes vested in a person other
      than Grantor, Lender, without notice to Grantor, may deal with Grantor's
      successors with reference to this Agreement and the Indebtedness by way of
      forbearance or extension without releasing Grantor from the obligations of
      this Agreement or liability under the Indebtedness.

      SURVIVAL OF REPRESENTATIONS AND WARRANTIES. All representations,
      warranties, and agreements made by Grantor in this Agreement shall survive
      the execution and delivery of this Agreement, shall be continuing in
      nature, and shall remain in full force and effect until such time as
      Grantor's Indebtedness shall be paid in full.

      TIME IS OF THE ESSENCE. Time is of the essence in the performance of this
      Agreement.

      WAIVE JURY. ALL PARTIES TO THIS AGREEMENT HEREBY WAIVE THE RIGHT TO ANY
      JURY TRIAL IN ANY ACTION, PROCEEDING, OR COUNTERCLAIM BROUGHT BY ANY PARTY
      AGAINST ANY OTHER PARTY.

DEFINITIONS. The following capitalized words and terms shall have the following
meanings when used in this Agreement. Unless specifically stated to the
contrary, all references to dollar amounts shall mean amounts in lawful money of
the United States of America. Words and terms used in the singular shall include
the plural, and the plural shall include the singular, as the context may
require. Words and terms not otherwise defined in this Agreement shall have the
meanings attributed to such terms in the Uniform Commercial Code:

      AGREEMENT. The word "Agreement" means this Commercial Security Agreement,
      as this Commercial Security Agreement may be amended or modified from time
      to time, together with all exhibits and schedules attached to this
      Commercial Security Agreement from time to time.

      BORROWER. The word "Borrower" means MEDAIRE, INC. and includes all
      co-signers and co-makers signing the Note and all their successors and
      assigns.

      COLLATERAL. The word "Collateral" means all of Grantor's right, title and
      interest in and to all the Collateral as described in the Collateral
      Description section of this Agreement.

      DEFAULT. The word "Default" means the Default set forth in this Agreement
      in the section titled "Default".

      ENVIRONMENTAL LAWS. The words "Environmental Laws" mean any and all state,
      federal and local statutes, regulations and ordinances relating to the
      protection of human health or the environment, including without
      limitation the Comprehensive Environmental Response, Compensation, and
      Liability Act of 1980, as amended, 42 U.S.C. Section 9601, et seq.
      ("CERCLA"), the Superfund Amendments and Reauthorization Act of 1986, Pub.
      L. No. 99-499 ("SARA"), the Hazardous Materials Transportation Act, 49
      U.S.C. Section 1801, et seq., the Resource Conservation and Recovery Act,
      42 U.S.C. Section 6901, et seq., or other applicable state or federal
      laws, rules, or regulations adopted pursuant thereto.

      EVENT OF DEFAULT. The words "Event of Default" mean any of the events of
      default set forth in this Agreement in the default section of this
      Agreement.

      GRANTOR. The word "Grantor" means MEDAIRE, INC..

      GUARANTY. The word "Guaranty" means the guaranty from guarantor, endorser,
      surety, or accommodation party to Lender, including without limitation a
      guaranty of all or part of the Note.

      HAZARDOUS SUBSTANCES. The words "Hazardous Substances" mean materials
      that, because of their quantity, concentration or physical, chemical or
      infectious characteristics, may cause or pose a present or potential
      hazard to human health or the environment when improperly used, treated,
      stored, disposed of, generated, manufactured, transported or otherwise
      handled. The words "Hazardous Substances" are used in their very broadest
      sense and include without limitation any and all hazardous or toxic
      substances, materials or waste as defined by or listed under the
      Environmental Laws. The term "Hazardous Substances" also includes, without
      limitation, petroleum and petroleum by-products or any fraction thereof
      and asbestos.

      INDEBTEDNESS. The word "Indebtedness" means the indebtedness evidenced by
      the Note or Related Documents, including all principal and interest
      together with all other indebtedness and costs and expenses for which
      Grantor is responsible under this Agreement or under any of the Related
      Documents. Specifically, without limitation, Indebtedness includes the
      future advances set forth in the Future Advances provision of this
      Agreement together with all interest thereon.

      LENDER. The word "Lender" means DESERT HILLS BANK, its successors and
      assigns.

      NOTE. The word "Note" means the Note executed by MEDAIRE, INC. in the
      principal amount of $1,000,000.00 dated April 29, 2005, together with all
      renewals of, extensions of, modifications of, refinancings of,
      consolidations of, and substitutions for the note or credit agreement.

      PROPERTY. The word "Property" means all of Grantor's right, title and
      interest in and to all the Property as described in the "Collateral
      Description" section of this Agreement.

      RELATED DOCUMENTS. The words "Related Documents" mean all promissory
      notes, credit agreements, loan agreements, environmental agreements,
      guaranties, security agreements, mortgages, deeds of trust, security
      deeds, collateral mortgages, and all other instruments, agreements and
      documents, whether now or hereafter existing, executed in connection with
      the Indebtedness.

GRANTOR HAS READ AND UNDERSTOOD ALL THE PROVISIONS OF THIS COMMERCIAL SECURITY
AGREEMENT AND AGREES TO ITS TERMS. THIS AGREEMENT IS DATED APRIL 29, 2005.

GRANTOR:

<PAGE>

                          COMMERCIAL SECURITY AGREEMENT
                                  (CONTINUED)
Loan No: 70000105                                                         PAGE 7

MEDAIRE, INC.

BY:     /s/ Joan S. Garrett
      -----------------------------------
      JOAN SULLIVAN GARRETT, PRESIDENT OF
      MEDAIRE, INC.<PAGE>

                                                                    EXHIBIT 10.5

                               APOLLO GROUP, INC.

                           THIRD AMENDED AND RESTATED

                        1994 EMPLOYEE STOCK PURCHASE PLAN

      WHEREAS, Apollo Group, Inc. (the "Company") previously adopted the Apollo
Group, Inc. 1994 Employee Stock Purchase Plan ("Prior Plan");

      WHEREAS, the Plan has subsequently been amended on three separate
occasions;

      WHEREAS, the Company wishes to amend and restate the Prior Plan because of
changes to the financial accounting reporting requirements applicable to
employee stock purchase plans that offer employer stock at more than a five
percent discount and provide a look-back feature in which the purchase price of
the stock is determined by reference to the stock's market value as of the first
or last day of an offering period, whichever is less;

      NOW THEREFORE, the Company hereby adopts the Apollo Group, Inc. Amended
and Restated 1994 Employee Stock Purchase Plan (the "Plan") effective as of the
Offering Period beginning on October 1, 2005 ("Effective Date"), as set forth
below.

      1. Purpose. The purpose of the Plan is to encourage stock ownership by
employees of the Company and its Subsidiaries and thereby provide employees with
an incentive to contribute to the profitability and success of the Company. The
Plan, which is intended to qualify as an "employee stock purchase plan" meeting
the requirements of Section 423 of the Code, is for the exclusive benefit of
eligible employees of the Company and its Subsidiaries.

      2. Definitions. For purposes of the Plan, in addition to the terms defined
in Section 1, terms are defined as set forth below:

         (a) "Board" means the Board of Directors of the Company.

         (b) "Cash Account" means the account which shall be a subaccount in the
Company's general cash account, maintained on behalf of a Participant by the
Company for the purpose of holding cash contributions withheld from payroll
pending investment in Stock

         (c) "Code" means the Internal Revenue Code of 1986, as amended from
time to time. References to any provision of the Code will be deemed to include
successor provisions thereto and regulations thereunder.

         (d) "Custodian" means Smith Barney Inc., or such successor thereto as
may be appointed by the Board or its delegate under Section 3(a).

         (e) "Earnings" means that portion of a Participant's salary or wages
which is designated as "regular pay" under the payroll system of the Company and
its Subsidiaries and

<PAGE>

received by a Participant for services rendered during a specified pay period
during which time the Participant participated in the Plan.

         (f) "Enrollment Date" means the first business day of each Offering
Period.

         (g) "Fair Market Value" means the closing sale price of Stock reported
in the table entitled "Nasdaq National Market Issues" or any successor table in
the Wall Street Journal (or, if Stock is then principally traded on a national
securities exchange, in the table reporting composite transactions for such
exchange) for such date or, if no shares of Stock were traded on that date, on
the next preceding day on which there was such a trade.

         (h) "Offering Period" means the three-month period beginning on January
1, April 1, July 1, or October 1 of each year, with the first Offering Period to
begin on the first such date after the Company's Stock is publicly traded on the
Nasdaq National Market or a national securities exchange.

         (i) "Participant" means an employee of the Company or a Subsidiary who
is participating in the Plan.

         (j) "Purchase Date" means the fifth business day after the end of each
Offering Period.

         (k) "Purchase Right" means a Participant's option to purchase shares
which is deemed to be outstanding during an Offering Period. A Purchase Right
represents an "option" as such term is used under Section 423 of the Code.

         (l) "Stock" means the Company's Apollo Education Group Class A common
stock, no par value per share, and such other securities as may be substituted
or resubstituted for Stock under Section 4.

         (m) "Stock Account" means the account maintained on behalf of the
Participant by the Custodian for the purpose of holding Stock acquired upon
investment under the Plan.

         (n) "Subsidiary" means any corporation (other than the Company) in an
unbroken chain of corporations beginning with the Company if each of the
corporations (other than the last corporation in the unbroken chain) owns stock
possessing 50% or more of the total combined voting power of all classes of
stock in one of the other corporations in the chain.

      3. Administration.

         (a) Board Administration. The Plan will be administered by the Board;
provided, however, that the Board may delegate any administrative duties and
authority (other than authority to amend or terminate the Plan) to any Board
committee or to any officers or employees or committee thereof as the Board may
designate (in which case references herein to the Board will be deemed to refer
to the administrator to which such duties and authority have been delegated).
The Board will have full authority to adopt, amend, suspend, waive, and rescind
such rules and regulations and appoint such agents as it may deem necessary or
advisable

                                     - 2 -
<PAGE>

to administer the Plan, to correct any defect or supply any omission or
reconcile any inconsistency in the Plan and to construe and interpret the Plan
and rules and regulations thereunder, to furnish to the Custodian such
information as the Custodian may require, and to make all other decisions and
determinations under the Plan (including determinations relating to
eligibility). No person acting in connection with the administration of the Plan
will, in that capacity, participate in deciding any matter relating to his or
her participation in the Plan.

         (b) The Custodian. The Custodian will act as custodian under the Plan,
and will perform such duties as are set forth in the Plan and in any agreement
between the Company and the Custodian. The Custodian will establish and
maintain, as agent for Participants, Participant Stock accounts and any other
subaccounts as may be necessary or desirable for the administration of the Plan.

         (c) Waivers. The Board may waive or modify any requirement that a
notice or election be made or filed under the Plan a specified period in advance
in an individual case or by adoption of a rule or regulation under the Plan,
without the necessity of an amendment to the Plan.

         (d) Other Administrative Provisions. The Company will furnish
information from its records as directed by the Board, and such records,
including as to a Participant's Earnings, will be conclusive on all persons
unless determined by the Board to be incorrect. Each Participant and other
person claiming benefits under the Plan must furnish to the Company in writing a
current mailing address and any other information as the Board or Custodian may
reasonably request. Any communication, statement, or notice mailed with postage
prepaid to any such Participant or other person at the last mailing address
filed with the Company will be deemed sufficiently given when mailed and will be
binding upon the named recipient. The Plan will be administered on a reasonable
and nondiscriminatory basis and will apply uniform rules to all persons
similarly situated. All Participants will have equal rights and privileges
(subject to the terms of the Plan) with respect to Purchase Right outstanding
during any given Offering Period in accordance with Code Section 423(b)(5).

      4. Stock Subject to Plan. Subject to adjustment as hereinafter provided,
the aggregate number of shares of Stock reserved and available for issuance or
which may be otherwise acquired upon exercise of Purchase Rights under the Plan
shall be 7,593,750. Any shares of Stock delivered by the Company under the Plan
may consist, in whole or in part, of authorized and unissued shares or treasury
shares. The number and kind of such shares of Stock subject to the Plan will be
proportionately adjusted, as determined by the Board, in the event of any
extraordinary dividend or other distribution, recapitalization, forward or
reverse split, reorganization, merger, consolidation, spin-off, combination,
repurchase, or share exchange, or other similar corporate transaction or event
affecting the Stock. If at the end of any Offering Period, the number of shares
of Stock with respect to which Purchase Rights are to be exercised exceeds the
number of shares of Stock then available under the Plan, the Board shall make a
pro rata allocation of the shares of Stock remaining available for purchase in
as uniform a manner as shall be practicable and as it shall determine to be
equitable.

                                      - 3 -
<PAGE>

      5. Enrollment and Contributions.

         (a) Eligibility. An employee of the Company or a Subsidiary may be
enrolled in the Plan for any Offering Period if such employee was continuously
so employed during the 90 days preceding the Enrollment Date, unless one of the
following applies to the employee:

            (i)   Such person has been employed for less than one year with the
                  Company or a Subsidiary;

            (ii)  Such person is a "highly compensated employee" of the Company
                  within the meaning of Section 414(q) of the Code and was a
                  participant in the Apollo Group, Inc. Long-Term Incentive Plan
                  on September 1, 1994;

            (iii) Such person would, immediately upon enrollment, be deemed to
                  own, for purposes of Section 423(b)(3) of the Code, an
                  aggregate of five percent or more of the total combined voting
                  power or value of all outstanding shares of all classes of the
                  Company or any Subsidiary; or

            (iv)  Such person is no longer employed by the Company or a
                  Subsidiary.

      The Company will notify an employee of the date as of which he or she is
eligible to enroll in the Plan, and will make available to each eligible
employee the necessary enrollment forms.

      Notwithstanding the above, any individual who is employed by the Company
or a Subsidiary designated by the Board and who is working outside of the United
States shall not be eligible to participate in the Plan if the laws of the
country in which the employee is working makes the offer of the Purchase Right
or the delivery of Stock under the Plan impractical. Additionally, the offer of
the Purchase Right and the delivery of Stock under the Plan shall be effective
for any individual who is employed by the Company or a Subsidiary and who is
working outside of the United States only after the Company has complied with
the applicable laws of the country in which the employee is working.

         (b) Initial Enrollment. An employee who is eligible under Section 5(a)
(or who will become eligible on or before a given Enrollment Date) may, after
receiving current information about the Plan, initially enroll in the Plan by
executing and filing with the Company's Human Resources Office a properly
completed enrollment form, including thereon the employee's election as to the
rate of payroll contributions for the Offering Period. To be effective for any
Offering Period, such properly executed enrollment form must be filed at least
15 days (or such other period determined by the Board, or its delegate under
Section (3a)) before the Enrollment Date for the Offering Period.

         (c) Automatic Re-enrollment for Subsequent Offering Periods. A
Participant whose enrollment in and payroll contributions under the Plan
continues throughout an Offering Period will automatically be reenrolled in the
Plan for the next Offering Period unless (i) the

                                     - 4 -
<PAGE>

Participant terminates enrollment before the Enrollment Date for the next
Offering Period in accordance with Section 7(a) or (ii) on such Enrollment Date
he or she is ineligible to participate under Section 5(a). The rate of payroll
contributions for a Participant who is automatically re-enrolled for an Offering
Period will be the same as the rate of payroll contribution in effect at the end
of the preceding Offering Period, unless the Participant files a new properly
executed enrollment form at least 15 days (or such other period determined by
the Board, or its delegate under Section (3a)) before the Enrollment Date for
the Offering Period designating a different rate of payroll contribution.

         (d) Payroll Contributions. A Participant will make contributions under
the Plan only by means of payroll deductions from Earnings for each payroll
period that ends during the Offering Period, at the rate elected by the
Participant in his or her enrollment form in effect for that Offering Period
(except that such rate may be changed during the Offering Period to the extent
permitted below). The rate of payroll contributions elected by a Participant may
not be less than one percent of the Participant's Earnings for each payroll
period ending during an Offering Period, nor more than the greater of (A) 10
percent of the Participant's year-to-date Earnings, or (B) $3,000 during any
full or partial calendar year during which an individual is eligible to
participate in the Plan, and only whole percentages may be elected; provided,
however, that the Board may specify a lower minimum rate and higher maximum rate
or dollar amount, subject to Section 8(c). Notwithstanding the above, a
Participant's payroll contributions will be adjusted downward by the Company as
necessary to ensure that the limit on the amount of Stock purchased with respect
to an Offering Period set forth in Section 6(a)(iii) is not exceeded. A
Participant may elect to increase, decrease, or discontinue payroll
contributions for a future Offering Period by filing a new properly executed
enrollment form at least 15 days (or such other period determined by the Board,
or its delegate under Section (3a)) before the Enrollment Date for the Offering
Period designating a different rate of payroll contributions. In addition, a
Participant may elect to decrease or discontinue payroll contributions during an
Offering Period by filing a new properly executed enrollment form, such change
to be effective for the next payroll period beginning at least 15 days after
such filing.

         (e) Crediting Payroll Contributions to Cash Accounts. All payroll
contributions by a Participant under the Plan will be credited to a Cash Account
maintained by the Company on behalf of the Participant. The Company will credit
payroll contributions to each Participant's Cash Account as soon as practicable
after the contributions are withheld from the Participant's Earnings..

         (f) No Interest on Cash Accounts. No amounts of interest will be
credited or payable by the Company on payroll contributions or by the Custodian
on cash balances in Participant's Cash Accounts pending investment in Stock.

         (g) Effect of Rehiring. If an individual terminates employment with, or
ceases to perform services for, the Company and is later rehired by, or again
commences performing services for, the Company, the individual will be eligible
to participate in the Plan as of the Offering Period next following the date the
individual is rehired by, or again commences providing services for, the Company
if the period that the individual was separated from employment with, or ceased
providing services for, the Company is less than one full calendar year. If the
period that the individual was separated from employment with, or ceased
providing

                                     - 5 -
<PAGE>

services for, the Company is equal to or greater than one full calendar year,
the individual will be eligible to participate in the Plan only after the
individual has again satisfied the eligibility requirements set forth in Section
5(a).

      6. Purchases of Stock

         (a) Purchase Rights. Enrollment in the Plan for any Offering Period by
a Participant will constitute a grant by the Company of a Purchase Right to such
Participant for such Offering Period. Each Purchase Right will be subject to the
following terms:

            (i)   The Purchase prices at which Stock will be purchased under a
                  Purchase Right will be as specified in Section 6(c).

            (ii)  Except as limited in (iii) below, the number of shares of
                  Stock that may be purchased upon exercise of the Purchase
                  Right for an Offering Period will equal the number of shares
                  (including fractional shares) that can be purchased at the
                  purchase price specified in Section 6(c) with the aggregate
                  amount credited to the Participant's Cash Account as of the
                  Purchase Date.

            (iii) The number of shares of Stock subject to a Participant's
                  Purchase Right for any Offering Period will not exceed the
                  number derived by dividing $6,250 by 100% of the Fair Market
                  Value of one share of Stock on the Enrollment Date for the
                  Offering Period.

            (iv)  The Purchase Right will be automatically exercised on the
                  Purchase Date for the Offering Period.

            (v)   Payments by a Participant for Stock purchased under a Purchase
                  Right will be made only through payroll deduction in
                  accordance with Section 5(d) and (e).

            (vi)  The Purchase Right will expire on the earlier of the Purchase
                  Date for the Offering Period or the date on which the
                  Participant's enrollment in the Plan terminates.

         (b) Purchase of Stock. At or as promptly as practicable after the
Purchase Date for an Offering Period, amounts credited to each Participant's
Cash Account as of such Purchase Date will be applied by the Custodian to the
purchase of shares of Stock, in accordance with the terms of the Plan. Shares of
Stock will be purchased by the Custodian from the Company. The Shares sold by
the Company to the Custodian may be authorized but unissued shares or treasury
shares, as permitted under Section 4 hereof. The Custodian will aggregate the
amounts in all Cash Accounts when purchasing Stock, and shares so purchased will
be allocated to each Participant's Stock Account in proportion to the cash
amounts withdrawn from such Participant's Cash Account. Upon completion of
purchases in respect of a Purchase Date (which will be completed in not more
than 30 days after the Purchase Date), all shares of Stock so purchased for a
Participant will be credited to the Participant's Stock Account.

                                     - 6 -
<PAGE>

         (c) Purchase Price. The purchase price of each share of Stock purchased
in respect of a Purchase Date will equal 95% of the Fair Market Value of a share
of Stock on the Purchase Date.

         (d) Dividend Reinvestment; Other Distributions. Cash dividends on any
Stock credited to a Participant's Stock Account will be automatically reinvested
in additional shares of Stock; such amounts will not be available in the form of
cash to Participants. All cash dividends paid on Stock credited to Participants'
Stock Accounts will be paid over by the Company to the Custodian at the dividend
payment date. The Custodian will aggregate all purchase of Stock in connection
with dividend reinvestment for a given dividend payment date. Purchases of Stock
for purposes of dividend reinvestment will be made as promptly as practicable
(but not more than 30 days) after a dividend payment date. The Custodian will
make such purchases, as directed by the Board, either (i) in transactions on the
Nasdaq National Market System, any securities exchange upon which Stock is
traded, otherwise in the over-the-counter market, or in negotiated transactions,
or (ii) directly from the Company at 100% of the Fair Market Value of a share of
Stock on the dividend payment date. Any shares of Stock distributed as a
dividend or other distribution in respect of shares of Stock or in connection
with a split of the Stock credited to a Participant's Stock Account will be
credited to such Account.

         (e) Withdrawals and Transfers. Shares of Stock may be withdrawn from a
Participant's Stock Account, in which case one or more certificates for whole
shares may be issued in the name of, and delivered to, the Participant, with
such Participant receiving cash in lieu of fractional shares based on the Fair
Market Value of a share of Stock on the date of withdrawal. Alternatively, whole
shares of Stock may be withdrawn from a Participant's Stock Account by means of
a transfer to a broker-dealer or financial institution that maintains an account
for the Participant, together with the transfer of cash in lieu of fractional
shares based on the Fair Market Value of a share of Stock on the date of
withdrawal. Participants may not designate any other person to receive shares of
Stock withdrawn or transferred under the Plan. A Participant seeking to withdraw
or transfer shares of Stock must give instructions to the Custodian in such
manner and form as may be prescribed by the Custodian, which instructions will
be acted upon as promptly as practicable. Withdrawals and transfers will be
subject to any fees imposed in accordance with Section 8(a) hereof.

         (f) Excess Account Balances. If any amounts remain in a Cash Account
following a Purchase Date as a result of the limitation set forth in Section
6(a)(iii), or for any other reason, such amounts which resulted from payroll
contributions will be returned to the Participant as promptly as practicable.

      7. Termination and Distributions.

         (a) Termination of Enrollment. A Participant's enrollment in the Plan
will terminate upon (i) the beginning of any payroll period or Offering Period
that begins after he or she files a written notice of termination of enrollment
with the Company, provided that such Participant will continue to be deemed to
be enrolled with respect to any completed Offering Period for which purchases
have not been completed; or (ii) such time as the Participant becomes ineligible
to participate under Section 5(a) of the Plan. An employee who files a written
notice of termination of enrollment with the Company may again enroll in the
Plan as of any

                                     - 7 -
<PAGE>

subsequent Enrollment Date that is at least 90 days after such termination of
enrollment if he or she satisfies the eligibility requirements of Section 5(a)
as of such Enrollment Date. A Participant's election to discontinue payroll
contributions will not constitute a termination of enrollment.

         (b) Distribution. As soon as practicable after a Participant's
enrollment in the Plan terminates, amounts in the Participant's Cash Account
which resulted from payroll contributions will be repaid to the Participant. If
amounts credited to the Participant's Cash Account have not yet been deposited
by the Company with the Custodian, the Company rather than the Custodian will
make the repayment to the Participant. The Custodian will continue to maintain
the Participant's Stock Account for the Participant until the earlier of such
time as the Participant directs the sale of all Stock in the Account, withdraws,
or transfers all Stock in the Account, or one year after the Participant ceases
to be employed by the Company and its Subsidiaries. If a Participant's
termination of enrollment results from his or her death, all amounts payable
will be paid to his or her estate.

      8. General.

         (a) Costs. Costs and expenses incurred in the administration of the
Plan and maintenance of Accounts will be paid by the Company, to the extent
provided in this Section 8(a). Any brokerage fees and commissions for the
purchase of Stock under the Plan (including Stock purchased upon reinvestment of
dividends and distributions) will be paid by the Company, but any brokerage fees
and commissions for the sale of Stock under the Plan by a Participant will be
borne by such Participant. The rate at which such fees and commissions will be
charged to Participants will be determined by the Custodian or any broker-dealer
used by the Custodian (including an affiliate of the Custodian), and
communicated from time to time to Participants. In addition, the Custodian may
impose or pass through a reasonable fee for the withdrawal of Stock in the form
of stock certificates (as permitted under Section 6(f)), and reasonable fees for
other services unrelated to the purchase of Stock under the Plan, to the extent
approved in writing by the Company and communicated to Participants.

         (b) Statements to Participants. The Custodian will reflect payroll
contributions, matching allocations (if any), purchases, sales, and withdrawals
and transfers of shares of Common Stock and other Plan transactions by
appropriate adjustments to the Participant's Accounts. The Custodian will, not
less frequently than quarterly, provide or cause to be provided a written
statement to the Participant showing the transactions in his or her Accounts and
the date thereof, the number of shares of Stock purchased or sold, the aggregate
purchase price paid or sales price received, the purchase or sales price per
share, the brokerage fees and commissions paid (if any), the total shares held
for the Participant's Stock Account (computed to at least three decimal places),
and other information.

         (c) Compliance with Section 423. It is the intent of the Company that
this Plan comply in all respects with applicable requirements of Section 423 of
the Code and regulations thereunder. Accordingly, if any provision of this Plan
does not comply with such requirements, such provision will be construed or
deemed amended to the extent necessary to conform to such requirements.

                                     - 8 -
<PAGE>

      9. General Provisions.

         (a) Compliance With Legal and Other Requirements. The Plan, the
granting and exercising of Purchase Rights hereunder, and the other obligations
of the Company and the Custodian under the Plan will be subject to all
applicable federal and state laws, rules, and regulations, and to such approvals
by any regulatory or governmental agency as may be required. The Company may, in
its discretion, postpone the issuance or delivery of Stock upon exercise of
Purchase Rights until completion of such registration or qualification of such
Stock or other required action under any federal or state law, rule, or
regulation, or the listing or other required action with respect to any
automated quotation system or stock exchange upon which the Stock or other
Company securities are designated or listed, or compliance with any other
contractual obligation of the Company, as the Company may consider appropriate,
and may require any Participant to make such representations and furnish such
information as it may consider appropriate in connection with the issuance or
delivery of Stock in compliance with applicable laws, rules, and regulations,
designation or listing requirements, or other contractual obligations. The
Company may, in its discretion, postpone the issuance or delivery of Stock upon
exercise of Purchase Rights until completion of such registration or
qualification of such Stock or other required action under any federal or state
law, rule, or regulation, or the laws of any country in which employees of the
Company and a Subsidiary who are nonresident aliens and who arc eligible to
participate reside, or other required action with respect to any automated
quotation system or stock exchange upon which the Stock or other Company
securities are designated or listed, or compliance with any other contractual
obligation of the Company, as the Company may consider appropriate.

         (b) Limits on Encumbering Rights. No right or interest of a Participant
under the Plan, including any Purchase Right, may be pledged, encumbered, or
hypothecated to or in favor of any party, subject to any lien, obligation, or
liability of such Participant, or otherwise assigned, transferred, or disposed
of except pursuant to the laws of descent or distribution, and any right of a
Participant under the Plan will be exercisable during the Participant's lifetime
only by the Participant.

         (c) No Right to Continued Employment. Neither the Plan nor any action
taken hereunder, including the grant of a Purchase Right, will be construed as
giving any employee the right to be retained in the employ of the Company or any
of its Subsidiaries, nor will it interfere in any way with the right of the
Company or any of its Subsidiaries to terminate any employee's employment at any
time.

         (d) Taxes. The Company or any Subsidiary is authorized to withhold from
any payment to be made to a Participant, including any payroll and other
payments not related to the Plan, amounts of withholding and other taxes due in
connection with any transaction under the Plan, and a Participant's enrollment
in the Plan will be deemed to constitute his or her consent to such withholding.
In addition, Participants may be required to advise the Company of sales and
other dispositions of Stock acquired under the plan in order to permit the
Company to comply with tax laws and to claim any tax deductions to which the
Company may be entitled with respect to the Plan. (This provision and other Plan
provisions do not set forth an explanation of the tax consequences to
Participants under the Plan.)

                                     - 9 -
<PAGE>

         (e) Changes to the Plan. The Board may amend, alter, suspend,
discontinue, or terminate the Plan without the consent of shareholders or
Participants, except that any such action will be subject to the approval of the
Company's shareholders within one year after such Board action if such
shareholder approval is required by any federal or state law or regulation or
the rules of any automated quotation system or stock exchange on which the Stock
may then be quoted or listed, or if such shareholder approval is necessary in
order for the Plan to continue to meet the requirements of Section 423 of the
Code, and the Board may otherwise, in its discretion, determine to submit other
such actions to shareholders for approval; provided, however, that, without the
consent of an affected Participant, no amendment, alteration, suspension,
discontinuation, or termination of the Plan may materially and adversely affect
the rights of such Participant with respect to outstanding Purchase Rights
relating to any Offering Period that has been completed prior to such Board
action. The foregoing notwithstanding, upon termination of the Plan the Board
may (i) elect to terminate all outstanding Purchase Rights at such time as the
Board may designate; in the event of such termination of any Purchase Right
prior to its exercise, all amounts contributed to the Plan which remain in a
Participant's Cash Account will be returned to the Participant (without
interest) as promptly as practicable, or (ii) shorten the Offering Period to
such period determined by the Board and use amounts credited to a Participant
Cash Account to purchase Stock.

         (f) No Rights to Participate; No Shareholder Rights. No Participant or
employee will have any claim to participate in the Plan with respect to Offering
Periods that have not commenced, and the Company will have no obligation to
continue the Plan. No Purchase Right will confer on any Participant any of the
rights of a shareholder of the Company unless and until Stock is duly issued or
transferred and delivered to the Participant (or credited to the Participant's
Stock Account).

         (g) Fractional Shares. Unless otherwise determined by the Board,
purchases of Stock under the Plan executed by the Custodian may result in the
crediting of fractional shares of Stock to the Participant's Stock Account. Such
fractional shares will be computed to at least three decimal places. Fractional
shares will not, however, be issued by the Company, and certificates
representing fractional shares will not be delivered to Participants under any
circumstances.

         (h) Nonexclusivity of the Plan. Neither the adoption of the Plan by the
Board nor its submission to the shareholders of the Company for approval will be
construed as creating any limitations on the power of the Board to adopt such
other compensatory arrangements as it may deem desirable, including, without
limitation, the granting of stock options otherwise than under the Plan, and
such arrangements may be either applicable generally or only in specific cases.

         (i) Plan Year. The Plan will operate on a plan year which ends December
31 in each year.

         (j) Governing Law. The validity, construction, and effect of the Plan
and any rules and regulations relating to the Plan will be determined in
accordance with the laws of the State of Arizona, without giving effect to
principles of conflicts of laws, and applicable federal law.

                                     - 10 -
<PAGE>

         (k) Effective Date. The Plan, as amended and restated, is effective as
of the Effective Date, which is the Offering Period beginning on October 1,
2005.

                                     - 11 -

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