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                                                                    Exhibit 10.4

                             RENEWAL PROMISSORY NOTE

$1,900,000.00
                                                            North Miami, Florida


         FOR VALUE RECEIVED, the undersigned, AESP, INC., a Florida corporation,
(the "Maker"), promises to pay to the order of COMMERCEBANK, N.A. and assigns
(collectively "Lender"), the principal sum of the lesser of (i) One Million Nine
Hundred Thousand and 00/100 DOLLARS ($1,900,000) on the terms set forth herein,
or (ii) the amount actually advanced to the Maker and outstanding in accordance
with the terms of the Line of Credit described in that certain loan agreement
(the "Loan Agreement"), dated September 23, 1999 between Maker and the Lender,
as it may be amended, supplemented, modified or restated from time to time, plus
interest on the unpaid principal balance on the terms set forth herein.

         All defined terms used herein shall have the meanings assigned in the
Loan Agreement except to the extent such terms are defined or limited herein.

         This renewal promissory note (this "Note") renews the outstanding
principal amount of that certain renewal promissory note (the "Fifth Renewal
Note") in the original principal amount of $1,900,000, from Borrower to Lender,
dated August 15, 2003, and is not intended to be a novation of the obligations
evidenced by the Fourth Renewal Note.

         Principal and interest shall be payable, as follows:

         From October 17, 2003 through and including November 30, 2003, interest
shall be due on the outstanding principal amount of this Note at a floating rate
equal to the Wall Street Journal Prime Rate (hereinafter defined) plus six
percent (6%) (the "Initial Note Rate"). From December 1, 2003 through and
including January 31, 2004, interest shall be due on the outstanding principal
amount of this Note at a floating rate equal to the Wall Street Journal Prime
Rate (hereinafter defined) plus seven percent (7%) (the "Initial Note Rate")
From February 1, 2004 through and including March 31, 2004, interest shall be
due on the outstanding principal amount of this Note at a floating rate equal to
the Wall Street Journal Prime Rate (hereinafter defined) plus eight percent
(8%). From April 1, 2004 through and including April 20, 2004, interest shall be
due on the outstanding principal amount of this Note at a floating rate equal to
the Wall Street Journal Prime Rate (hereinafter defined) plus nine percent (9%).
All outstanding principal and accrued and unpaid interest and costs and expenses
due lender hereunder and under the Loan documents shall be due and payable on
April 20, 2004 (the "Maturity Date"). After April 20, 2004 or if an Event of
Default shall have occurred, the principal of this Note shall bear interest at a
rate equal to the maximum rate permitted under applicable law (the "Default
Rate"). The interest rates set forth in the preceding sentences of this section
shall hereinafter be collectively referred to as the "Note Rate". The Note Rate
shall be a floating rate and shall initially be set as of the date of this
promissory note and shall be adjusted daily based on changes to the Wall Street
Journal Prime Rate as of such date. All changes in the Note Rate shall be
effective as of the date of change in the Wall Street Journal Prime Rate.
Interest shall be payable on the twentieth (20th) day of each consecutive
calendar month prior to the Maturity Date (hereinafter defined), commencing
November 20, 2003. All remaining unpaid principal and interest due thereon and
all other amounts owing under this Note and the Loan Documents (hereinafter
defined), shall be due and payable in full in no event later than the Maturity



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Date. "Wall Street Journal Prime Rate" shall mean the prime rate as reported in
the money rate column of the "Wall Street Journal" on the date of determination.
Interest shall be computed on the basis of a 360 day year for the actual number
of days in the applicable period.

         Prepayments shall be made and shall be applied as described in the Loan
Agreement. Maker may prepay the principal amount outstanding hereunder without
penalty.

         All installments of principal and/or interest are payable at the
offices of Commercebank, 220 Alhambra Circle, Coral Gables, FL 33134, or at such
other place as Lender hereof may, from time to time, designate in writing, in
lawful money of the United States of America, which shall be in legal tender for
public and private debts at the time of payment.

         Maker may prepay this Note at any time without penalty.

         If default is made in the payment of any part of the principal of or
interest due under the terms of this Note or upon an Event of Default under the
Loan Agreement (and such default is not cured after notice thereof, if required
under the applicable loan document, and the expiration of any applicable grace
period), then this Note shall be in default and the entire principal sum and
accrued interest shall become due and payable at once without notice and demand
at the option of Lender.

         In addition to the above, Lender may collect a late charge not to
exceed an amount equal to five percent (5%) of any installment which is not paid
within twenty (20) days of the due date thereof to cover the extra expense
involved in handling delinquent payments, provided that: (i) collection of said
late charge shall not be deemed a waiver by Lender of any of its other rights
under this Note and the Loan Agreement, the Security Agreement or any other
instrument given to secure this indebtedness, and (ii) such late charge shall
not apply to any payment of principal under Section 2.9 of the Loan Agreement.

         It is agreed that each maker and endorser, jointly and severally, shall
pay all reasonable costs of collection, including reasonable attorneys' fees, on
failure to pay any principal or interest when due on this Note. Such costs and
attorneys' fees shall include, but not be limited to, reasonable attorneys' fees
and paralegal fees incurred by Lender hereof in any and all judicial
proceedings, including appellate proceedings, arising out of enforcement and/or
collateral securing this indebtedness, whether such proceedings arise before or
after entry of final judgment.

         In case any provision (or any part of any provision) contained in this
Note shall for any reason be held to be invalid, illegal or unenforceable in any
respect, such invalidity, illegality or enforceability shall not affect any
other provision (or remaining part of the affected provision) of this Note, but
this Note shall be construed as if such invalid, illegal or unenforceable
provision (or part thereof) had never been contained herein, but only to the
extent it is invalid, illegal or unenforceable.

         Notwithstanding any provision of this Note and/or any instrument
securing payment of this Note to the contrary, it is the intent of the
undersigned Maker and Lender that Lender hereof shall never be entitled to
receive, collect or apply as interest on principal of the indebtedness any
amount in excess of the maximum rate of interest permitted to be charged by
applicable law; and in the event Lender ever receives, collects, or applies as
interest any such excess, such amount which should be excessive interest shall
be deemed a partial prepayment of principal and treated hereunder as such; and,
if the principal of the indebtedness secured


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hereby is paid in full, any remaining excess funds shall forthwith be paid to
Maker. In determining whether or not the interest paid or payable under any
specific contingency exceeds the highest lawful rate, Maker and Lender shall, to
the maximum extent permitted under applicable law (a) characterize any
non-principal payment as an expense, fee or premium rather than as interest (b)
exclude voluntary prepayments and the effects thereof, and (c) amortize,
prorate, allocate and spread, in equal parts, the total amount of interest
throughout the entire contemplated term of the indebtedness so that the interest
rate is uniform throughout the entire term of the indebtedness; provided that if
the indebtedness is paid and performed in full prior to the end of the full
contemplated term thereof, and if the interest received for the actual period of
existence thereof exceeds the maximum lawful rate, Lender shall refund to Maker
the amount of such excess or credit the amount of such excess against the
principal portion of the indebtedness, and in such event, Lender shall not be
subject to any penalties provided by any laws for contracting for, charging, or
receiving interest in excess of the maximum lawful rate. In no contingency or
event whatsoever shall the amount paid or agreed to be paid to Lender for the
use, forbearance or detention of the indebtedness collateralized hereby exceed
the maximum amount permissible under applicable law. If, from any circumstances
whatsoever, fulfillment of any provision hereof or any provision of any
instrument securing the primary obligation at the time performance of such
provision shall be due shall involve transcending the limit of validity
prescribed by applicable law, then, IPSO FACTO, the obligation to be fulfilled
shall be reduced to the limit of such validity. This provision shall control
every other provision of this Note.

         Maker, and each surety, endorser, guarantor and other party liable for
the payment of any sums of money payable on this Note, severally waive the right
of exemption under the Constitution and Laws of Florida, presentment and demand
for payment, protest and notice of protest and nonpayment, notice of dishonor,
notice of demand or intent to demand, notice of maturity and all requirements
necessary to hold each of them liable as maker, surety, endorser, guarantor and
any other party liable for the payment of sums of money hereunder, and agree
that their liability on this Note shall not be affected by any renewal or
extension in the time of payment thereof or by any release or change in any
security for the payment of this Note, regardless of the number of such
renewals, extensions, releases or changes.

         Maker and Lender mutually understand, covenant and agree that the
provisions of this Note (i) shall be binding upon Maker and its successors and
assigns (except as herein otherwise set forth) and shall inure to the benefit of
Lender and its assigns including any subsequent holder of this Note and (ii)
shall be construed, governed and enforced in all respects by the laws of the
State of Florida, including the Usury Laws of said state.

         Time shall be of the essence of each and every covenant and promise
contained in this Note and every other instrument securing the repayment of this
Note.

         This Note is secured by that certain collateral described in that
certain Security Agreement (the "Security Agreement") dated September 23, 1999
between Maker and Lender, as amended, and is to be construed according to the
Laws of Florida. Any default occurring under the Loan Agreement (which default
is not cured after notice thereof, if required under the applicable Loan
Document, and the expiration of any applicable grace period) shall constitute a
default under this Note, and Lender, at its option, may declare this Note due
and payable in full and may exercise its remedies under the Security Agreement.

         Maker hereby submits to the jurisdiction of the courts of the State of
Florida in the event any litigation arising from or related to this Note is
commenced. Maker agrees that the Lender may institute any cause

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of action against Maker involving this Note in the courts of Miami-Dade County,
Florida, and hereby waives any venue privilege or right to be sued in any other
forum.

         THE MAKER HEREBY KNOWINGLY, VOLUNTARILY AND INTENTIONALLY WAIVE ANY
RIGHT IT MAY HAVE TO A TRIAL BY JURY IN RESPECT OF ANY LITIGATION, PROCEEDINGS,
OR COUNTERCLAIMS ARISING OUT OF, UNDER OR IN CONNECTION WITH THIS OR ANY OF THE
LOAN DOCUMENTS. FURTHER, THE MAKER HEREBY CERTIFIES THAT NO REPRESENTATIVES OR
AGENTS OF THE LENDER NOR THE MAKER'S OR THE LENDER'S COUNSEL HAS REPRESENTED,
EXPRESSED OR OTHERWISE, THAT THE LENDER WOULD NOT IN THE EVENT OF SUCH
LITIGATION SEEK TO ENFORCE THIS WAIVER OF RIGHT TO JURY TRIAL PROVISION. MAKER
ACKNOWLEDGES THAT THE LENDER HAS BEEN INDUCED TO ENTER INTO THIS TRANSACTION BY,
INTER ALIA, THE PROVISIONS OF THIS SECTION. THE MAKERS AGREE NOT TO SEEK TO
CONSOLIDATE ANY SUCH ACTION IN WHICH A JURY TRIAL HAS BEEN WAIVED WITH ANY OTHER
ACTION BY WHICH A JURY TRIAL CANNOT BE WAIVED.

         IN WITNESS WHEREOF, the undersigned have executed and delivered this
Note the day and year first hereinabove provided.

                               AESP, INC.



                               By: /s/ Slav Stein
                                  ---------------------------------------------
                               Name: Slav Stein
                               Title: President



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