Exhibit 10.16

                                 PROMISSORY NOTE

                                                $766,183.04

                                                                  March 27, 2002

     FOR VALUE RECEIVED,  Le@p Technology,  Inc., a Delaware  corporation with a
principal  place  of  business  at  5601  N.  Dixie  Highway,  Suite  411,  Fort
Lauderdale,  Florida 33334 ("Maker"), promises to pay to the order of the M. Lee
Pearce 1998  Irrevocable  Trust,  or its registered  assigns (the "Payee"),  the
principal sum SEVEN HUNDRED SIXTY-SIX THOUSAND ONE HUNDRED  EIGHTY-THREE DOLLARS
AND FOUR CENTS of ($766,183.04),  together with interest at the "Prime Rate" (as
hereinafter  defined),  as announced from time to time),  due and payable in one
lump sum of principal and interest on January 15, 2003.  "Prime Rate" shall mean
the prime commercial  lending rate set forth in the "Money Rates" section of The
Wall Street  Journal,  as announced  from time to time.  Principal  and interest
shall be  payable to the Payee at the  following  address:  16 La Gorce  Circle,
Miami Beach, FL 33141, or such other place as the Payee may designate.

     This  Promissory  Note  (this  "Note") is issued  subject to the  following
additional terms and conditions:

     1. Type of Payment. Payment of both principal and interest shall be made in
currency of the United  States of America  which at the time of payment shall be
legal tender for the payment of public and private debts.

     2. Manner of Payment. Payment shall be made to Payee at the Payee's address
set forth above or such other place as Payee may designate in writing.

     3. Interest on Overdue  Payments.  From and after the date which is fifteen
(15) days after the date upon which any payment of principal  hereunder  becomes
due and payable,  if the same is not timely paid,  interest  shall be payable on
all sums outstanding hereunder at fifteen percent (15%) per annum.

     4. Miscellaneous.

          (A) This Note shall be binding upon the Maker and its  successors  and
     assigns.

          (B) If any provision  hereof shall be held invalid or unenforceable by
     any court of competent  jurisdiction  or as a result of future  legislative
     action,  such holding or action shall be strictly  construed  and shall not
     affect the validity or effect of any other provision hereof.


<PAGE>


          (C) The  validity,  interpretation  and  effect of this Note  shall be
     exclusively  governed by, and construed in accordance with, the laws of the
     State of Florida, excluding the "conflict of laws" rules thereof.

          (D) This Note may not be amended or modified,  nor shall any waiver of
     any  provision  hereof be  effective,  except by an  instrument  in writing
     executed by the Maker and Payee.

          (E) In case suit shall be brought for the collection  hereof, or if it
     is necessary to place the same in the hands of an attorney for  collection,
     the Maker  agrees to pay  reasonable  attorneys'  fees and costs for making
     such collections.

     IN WITNESS WHEREOF, the Maker has caused this Note to be executed as of the
day and year first above written.

                                           LE@P TECHNOLOGY, INC.


                                           By     /s/ Robert Tancredi, M.D.
                                           -------------------------------------
                                           Name:      Robert Tancredi, M.D.
                                           Title:     President