EXHIBIT 10.21
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                              EMPLOYMENT AGREEMENT
                              --------------------

      THIS AGREEMENT is entered into as of July 1, 1999 (the "EFFECTIVE  DATE"),
by and between AMERICAN MICRO COMPUTER CENTER,  INC., a Florida corporation (the
"COMPANY"),  and JOHN B. GALLAGHER (the "EMPLOYEE").  All capitalized terms used
in this  Agreement  and not  otherwise  defined  herein  shall have the meanings
assigned to them in the Acquisition Agreement (as defined herein).

      RECITALS.  Pursuant to a Merger  Agreement  dated as of June 29, 1999 (the
"Merger Agreement"),  the Company is the surviving  corporation of a merger with
American  Surgical  Supply Corp. of Florida d/b/a American Micro Computer Cener
("AMCC").  Employee's  participation in the business of the Company is essential
to the  Company's  success.  The parties wish to provide for the  employment  of
Employee  by the Company  from and after the date  hereof,  and to restrict  the
ability of Employee to compete with the Company, all on the terms and conditions
herein set forth.

      NOW,  THEREFORE,  for and in  consideration of the premises and the mutual
covenants and agreements herein contained, and for other valuable consideration,
the receipt and sufficiency of which are hereby acknowledged, the parties hereby
agree as follows:

      1.  EMPLOYMENT.  Subject to Section 3 below,  the Company  hereby  employs
Employee for a term of two (2) years (the "EMPLOYMENT TERM"),  commencing on the
Effective  Date,  to serve as  President  of the  Company  and to  perform  such
services  and  duties as are  consistent  with such  position.  Employee  hereby
accepts such  employment.  During the term of his employment  hereunder,  except
with respect to Employee's  duties as  Co-President  and Co-Chairman of European
Micro Holdings, Inc., a Nevada corporation and parent corporation of the Company
("EMCC"),  Employee  shall  devote  substantially  all  of  his  business  time,
attention,  knowledge and skills  faithfully,  diligently and to the best of his
ability to perform his duties  hereunder,  and Employee  shall not engage in any
venture or activity which materially  interferes with Employee's  performance of
his duties hereunder.

      2.  COMPENSATION  AND BENEFITS.  During the  Employment  Term, the Company
shall pay Employee the compensation and other amounts set forth below.

          2.1.  SALARY.  The Company  shall pay Employee a salary  ("SALARY") of
ONE-HUNDRED-FOUR  THOUSAND  DOLLARS  ($104,000)  per annum during the Employment
Term,  payable  in  installments  according  to the  Company's  regular  payroll
practices and subject to such deductions as may be required by law.

          2.2. BENEFITS.  Employee shall receive: (i) a Company automobile; (ii)
the employee  benefits and perquisites  provided by the Company to its executive
officers from  time-to-time,  which shall in any case be consistent  with EMCC's
policies  relating  to  subsidiary  compensation  and  benefit  plans;  and (ii)
reimbursement  for reasonable and necessary  out-of-pocket  expenses incurred in
the performance of his duties hereunder, including but not limited to travel and

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entertainment  expenses (such expenses shall be reimbursed by the Company,  from
time to time, upon presentation of appropriate receipts therefor).

      3.  TERMINATION.
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          3.1.  Employee's  employment  pursuant  to  this  Agreement  shall  be
terminated by the first to occur of the following events.

                (a) The death of Employee.

                (b) The Complete Disability of Employee.  "COMPLETE  DISABILITY"
as used herein shall mean the inability of Employee, due to illness, accident or
any other physical or mental incapacity, to perform the services provided for in
this  Agreement  for an  aggregate of  one-hundred-twenty  (120) days within any
period of twelve (12) consecutive months during the term hereof, as certified by
a licensed  competent  physician ("FIRST  PHYSICIAN").  In the event that either
party disputes the First Physician's determination of the Employee's disability,
such party (the  "OBJECTING  PARTY") shall so notify the other party (the "OTHER
PARTY") in writing  within ten (10) days after receipt of the First  Physician's
certification of disability ("NOTICE OF DISPUTE").  For a period of fifteen (15)
days following the Other Party's  receipt of the Notice of Dispute,  the parties
shall cause a licensed  physician  selected by the Objecting  Party (the "RECORD
PHYSICIAN")  and the First Physician to attempt to agree on whether the Employee
is completely disabled within the meaning of this section. If after such fifteen
(15) day period no  agreement  is reached,  the dispute  shall be resolved by an
independent  licensed  physician  jointly  selected by the First  Physician  and
Second  Physician  (the  "INDEPENDENT   PHYSICIAN"),   whose   determination  of
disability,  or absence  thereof,  shall be final and binding  upon the parties.
Employee shall be reasonably  available to be examined by each of the physicians
selected hereunder.  Each party shall pay the fees of the physician appointed by
him. If the Independent Physician agrees with Employee's position on disability,
the Company shall pay the fees and expenses of the Independent Physician. If the
Independent Physician does not agree with Employee's position on disability, the
Employee shall pay the fees and expenses of the Independent Physician.

                (c) The  resignation  of  Employee.  Employee  may  resign   his
employment at any time upon three (3) months' prior written notice.

                (d) The discharge of Employee by the Company for Cause.  "Cause"
as used herein shall mean:

                    (i) illegal drug use or alcohol abuse,  as determined by the
Company after investigation, notice of the charge to Employee and after allowing
Employee an opportunity to explain the conduct in question;

                    (ii)  conviction  of a  felony  or a crime  involving  moral
turpitude;

                    (iii) acts of fraud by  Employee  against the Company or its
affiliates,  or in connection with the performance of his duties  hereunder,  as
determined by the Company after investigation,  notice of the charge to Employee
and after allowing Employee an opportunity to dispute the charge in question; or



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                    (iv) the  Employee's  willful  failure  or refusal to comply
with the  provisions  of this  Agreement  or to  perform  Employee's  duties and
obligations under this Agreement (a "DEFAULT");  provided,  however, that in the
case of this  Subsection  (iv),  termination for "Cause" shall occur only if the
Company has given  written  notice of the Default to Employee  and  Employee has
failed to cure the Default in  question  during a period of seven (7) days after
the date of Employee's receipt of such notice.

          3.2. Upon any  termination  pursuant to Section 3.1, the Company shall
be released from all obligations hereunder (except for the obligation to pay any
compensation  and  benefits  described in Section 2 hereof which are accrued and
unpaid  as of the  date of  termination),  including,  without  limitation,  the
obligation to compensate Employee pursuant to Section 2 hereof.

      4.  CONFIDENTIALITY/COVENANT AGAINST UNFAIR COMPETITION.
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          4.1. The Company and the Employee  acknowledge that the services to be
performed by the Employee under this Agreement are unique and extraordinary and,
as a  result  of  such  employment,  the  Employee  will  be  in  possession  of
confidential  information relating to the business practices of the Company. The
term "CONFIDENTIAL  INFORMATION" shall mean any and all information  (verbal and
written)  relating  to the  Company  or any of its  affiliates,  or any of their
respective  activities,  other than such  information  which can be shown by the
Employee to be in the public domain (such  information not being deemed to be in
the public  domain  merely  because it is embraced by more  general  information
which is in the  public  domain)  other  than as the  result  of  breach  of the
provisions  of this  Section  4.1,  including,  but not limited to,  information
relating to: trade secrets,  personnel lists,  financial  information,  research
projects,  services  used,  pricing,  customers,  customer  lists and prospects,
product sourcing,  marketing and selling and servicing. The Employee agrees that
he will not,  during or for a period of two (2) years after the  termination  of
employment, directly or indirectly, use, communicate, disclose or disseminate to
any person,  firm or  corporation  any  confidential  information  regarding the
clients,  customers,  product  sources  or  business  practices  of the  Company
acquired by the Employee during his employment by the Company, without the prior
written consent of the Company.

          4.2.  Employee agrees that during the Employment Term and for a period
of two (2) years  following the  termination of his employment (for any reason),
he will  not,  for  his  own  account  or  jointly  with  another,  directly  or
indirectly,  for or on behalf of any individual,  partnership,  corporation,  or
other legal entity, as principal, agent or otherwise:

                    (i) own,  control,  manage, be employed by, consult with, or
otherwise  participate  in,  a  business  involved  within  the  Trade  Area (as
hereinafter defined) in: (A) the wholesale  distribution of computers,  computer
products,  peripherals,  and related parts, components and equipment; or (B) any
other  business  activity  which  competes  with the  business  conducted by the
Company  or any of  their  subsidiaries  at any  time  during  the one (1)  year
preceding the date of such termination (the activities  described in this clause
(i) are hereinafter referred to collectively as the "BUSINESS");



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                    (ii) solicit or induce, or in any manner attempt to solicit,
any person employed by EMCC or the Company or any of their subsidiaries to leave
such  employment,  whether  or not such  employment  is  pursuant  to a  written
contract and whether or not such  employment  is at will, or hire any person who
has been  employed  by EMCC or the Company or any of their  subsidiaries  at any
time during the six (6) month period preceding such hiring (except that Employee
shall not be prohibited from hiring any person terminated by EMCC or the Company
without cause,  so long as such person is not solicited or hired until after his
or her termination by EMCC or the Company); or

                    (iii) use or  disclose  any trade  secrets  or  confidential
information  concerning  the Business or any segment  thereof  Trade secrets and
confidential  information  concerning  the Business  shall  include,  but not be
limited to, (1) lists of names and  addresses of customers  and suppliers of the
Company or its  subsidiaries,  and (2) software and  computer  programs,  market
research and data bases, sources of leads and methods of obtaining new business,
and services employed by the Company, EMCC or their subsidiaries in the Business
or any segment thereof.

          4.3.  As used  herein,  the term  "TRADE  AREA"  shall mean the United
States  and any  other  geographic  area in  which  the  Company  conducted  any
significant business activities within the twelve (12) month period prior to the
termination of this Agreement.

          4.4. Employee  recognizes the importance of the covenant  contained in
this Section 4 and acknowledges  that, based on his past experience and training
as an executive  of the Company and the  projected  expansion  of the  Company's
business,  the restrictions imposed herein are: (i) reasonable as to scope, time
and area; (ii) necessary for the protection of the Company's legitimate business
interests,  including without limitation, the Company's trade secrets, goodwill,
and its relationship with customers and suppliers;  (iii) not unduly restrictive
of any  Employee's  rights as an  individual;  and (iv)  supported  by  adequate
consideration.  Employee acknowledges and agrees that the covenants contained in
this Section 4 are essential  elements of this  Agreement and that but for these
covenants,  EMCC would not have agreed to acquire the  Company  Common  Stock or
enter into this  Agreement.  Such  covenants  shall be construed  as  agreements
independent of any other provision of this Agreement. The existence of any claim
or cause of action  against the Company by Employee,  whether  predicated on the
breach of this  Agreement or  otherwise,  shall not  constitute a defense to the
enforcement by the Company of the covenants contained in this Section 4.

          4.5. If Employee  commits a breach or  threatens to commit a breach of
any of the  provisions  of this Section 4, the Company  shall have the right and
remedy, in addition to any others that may be available, at law or in equity, to
have the provisions of this Section 4 specifically  enforced by any court having
equity  jurisdiction,  through  injunctive or other relief  (without any bond or
security  being  required to be  posted),  it being  acknowledged  that any such
breach or threatened  breach will cause irreparable  injury to the Company,  the
amount of which will be difficult to determine,  and that money damages will not
provide an adequate remedy to the Company.



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          4.6. If any covenant contained in this Section 4, or any part thereof,
is hereafter construed to be invalid or unenforceable, the same shall not affect
the remainder of the covenants, which shall be given full effect, without regard
to the invalid portions,  and any court having jurisdiction shall have the power
to reduce the  duration,  scope and/or area of such covenant and, in its reduced
form,  said  covenant  shall  then be  enforceable.  If  Employee  breaches  the
covenants  set forth in this  Section 4, the running of the  non-compete  period
described  herein (but not his  obligation)  shall be tolled for so long as such
breach continues.  The provisions of this Section 4 shall survive the expiration
and termination of this Agreement,  and the termination of Employee's employment
hereunder.

      5.  COMPANY PROPERTY.
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          5.1. The Company  shall be the sole owner of all products and proceeds
of the  Employee's  services  hereunder,  including,  but not  limited  to,  all
materials, ideas, concepts, formats,  suggestions,  developments,  arrangements,
packages,  programs  and other  intellectual  properties  that the  Employee may
acquire, obtain, develop or create in connection with and during the term of the
Employee's  employment  hereunder,  free and clear of any claims by the Employee
(or anyone  claiming  under the  Employee) of any kind or  character  whatsoever
(other  than  the  Employee's  right to  receive  compensation  hereunder).  The
Employee  shall,  at the  request  of the  Company,  execute  such  assignments,
certificates  or other  instruments  as the  Company  may from time to time deem
necessary  or  desirable to evidence,  establish,  maintain,  perfect,  protect,
enforce or defend its right,  title and  interest in or to any such  properties.
Upon the termination of the Employee's employment for any reason whatsoever, all
documents, records, notebooks, equipment, price lists, specifications, programs,
customer  and  prospective  customer  lists and other  materials  which refer or
relate to any aspect of the Business which are in the possession of the Employee
(including all copies thereof), shall be promptly returned to the Company.

          5.2.  The  Employee  agrees  that  all  processes,   technologies  and
inventions ("INVENTIONS"), including new contributions,  improvements, ideas and
discoveries,  whether patentable or not, conceived,  developed, invented or made
by him  during  his  employment  by the  Company  shall  belong to the  Company,
provided that such  Inventions grew out of the Employee's work with the Company,
are  related  in any  manner to the  Business  or are  conceived  or made on the
Company's  time or with the use of the Company's  facilities  or materials.  The
Employee shall (i) promptly disclose such Inventions to the Company; (ii) assign
to the Company, without additional compensation,  all patent and other rights to
such  Inventions  for the United  States and foreign  countries;  (iii) sign all
papers necessary to carry out the foregoing; and (iv) given testimony in support
of his inventorship.

      6.  SUCCESSORS.  This  Agreement  is personal to Employee  and without the
prior written  consent of the Company shall not be assignable by Employee.  This
Agreement is not assignable by the Company except in connection with the sale of
all or substantially all of the Company's assets. Subject to the foregoing, this
Agreement  shall inure to the benefit of and be binding upon the Company and its
successors and assigns.



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      7.  MISCELLANEOUS.
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          7.1.  MODIFICATION AND WAIVER. Any term or condition of this Agreement
may be waived at any time by the party  hereto  that is  entitled to the benefit
thereof; provided,  however, that any such waiver shall be in writing and signed
by the waiving party,  and no such waiver of any breach or default  hereunder is
to be implied from the omission of the other party to take any action on account
thereof a waiver on one occasion  shall not be deemed to be a waiver of the same
or of any other breach on a future  occasion.  This Agreement may be modified or
amended only by a writing signed by both parties hereto.

          7.2. GOVERNING LAW. The validity and effect of this Agreement shall be
governed by and construed and enforced in accordance  with the laws of the State
of Florida.  Any dispute,  controversy,  or question of  interpretation  arising
under,  out of, in  connection  with,  or in relation to this  Agreement  or any
amendments  hereof,  or any breach or default  hereunder,  shall be  resolved by
litigation as provided in Section 11.4 of the Acquisition Agreement.

          7.3.  TAX  WITHHOLDING.  The  Company  may  withhold  from any amounts
payable  under this  Agreement  such taxes as shall be  required  to be withheld
pursuant to any applicable law or regulation.

          7.4. SECTION  CAPTIONS.  Section and other captions  contained in this
Agreement  are  for  reference  purposes  only  and  are in no way  intended  to
describe,  interpret,  define  or limit  the  scope,  extent  or  intent of this
Agreement or any provision hereof.

          7.5. SEVERABILITY. Every provision of this Agreement is intended to be
severable.  If any term or provision hereof is illegal or invalid for any reason
whatsoever,  such illegality or invalidity  shall not affect the validity of the
remainder of this Agreement.

          7.6.  INTEGRATED  AGREEMENT.  This  Agreement  constitutes  the entire
understanding and agreement among the parties hereto with respect to the subject
matter hereof,  and supersedes any other employment  agreements  executed before
the  date  hereof.  There  are  no  agreements,  understandings,   restrictions,
representations,  or  warranties  among the  parties  other than those set forth
herein or herein provided for.

          7.7.  INTERPRETATION.   No  provision  of  this  Agreement  is  to  be
interpreted  for or against any party  because that party or that party's  legal
representative drafted such provision. For purposes of this Agreement: "herein,"
"hereby," "hereunder,"  "herewith," "hereafter," and "hereinafter" refer to this
Agreement in its entirety, and not to any particular Section or subsection. This
Agreement may be executed in any number of counterparts,  each of which shall be
deemed  an  original,  and all of  which  shall  constitute  one  and  the  same
instrument.

          7.8. NOTICES. All notices, requests,  demands, or other communications
required or permitted  hereunder shall be in writing and shall be deemed to have
been duly given upon receipt if delivered in person or by facsimile transmission
(with confirmation transmission),  or upon the expiration of four (4) days after


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the date sent, if sent by Federal Express (or similar overnight courier service)
to the parties at the following addresses:

             If to Employee:         John B. Gallagher
                                     6073 N.W. 167th Street
                                     Unit C-25
                                     Miami, Florida 33015

             If to the Company:      c/o Technology Express
                                     808 Third Avenue, South
                                     Nashville, Tennessee  37210
                                     Attention:  Harry D.Shields, Co-President

             With a copy to:         Kirkpatrick & Lockhart LLP
                                     201 South Biscayne Boulevard
                                     Suite 2000
                                     Miami, Florida  33131
                                     Attention:  Clayton E. Parker, Esq.

      Notices may also be given in any other manner permitted by law,  effective
upon  actual  receipt.  Any party  may  change  the  address  to which  notices,
requests,  demands or other  communications  to such party shall be delivered or
mailed by  giving  notice  thereof  to the other  parties  hereto in the  manner
provided herein. Any notice may be given on behalf of a party by its counsel.

          7.9. NO JURY TRIAL.  THE PARTIES  HEREBY  KNOWINGLY,  VOLUNTARILY  AND
INTENTIONALLY WAIVE THE RIGHT ANY OF THEM MAY HAVE TO A TRIAL BY JURY IN RESPECT
OF ANY  LITIGATION  BASED HEREON OR ARISING OUT OF, UNDER OR IN CONNECTION  WITH
THIS  AGREEMENT  AND ANY  DOCUMENT  CONTEMPLATED  TO BE EXECUTED IN  CONJUNCTION
HEREWITH, OR ANY COURSE OF CONDUCT, COURSE OF DEALING, STATEMENTS WHETHER VERBAL
OR WRITTEN OR ACTIONS OF ANY PARTY. THIS PROVISION IS A MATERIAL  INDUCEMENT FOR
THE PARTIES' ACCEPTANCE OF THIS AGREEMENT.

          7.10.  ATTORNEYS'  FEES. In the event of any litigation  arising under
the terms of this Agreement,  the prevailing  party or parties shall be entitled
to recover  its or their  reasonable  attorneys'  fees and court  costs from the
other party or parties.



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      IN WITNESS WHEREOF,  the parties hereto have executed this Agreement as of
the Effective Date.

                                COMPANY:

                                AMERICAN MICRO COMPUTER CENTER, INC.

                                By:     /s/ Harry D.Shields
                                   ------------------------------
                                Name:   Harry D.Shields
                                Title:  President


                                EMPLOYEE:


                                      /s/ John B. Gallagher
                                ---------------------------------
                                John B. Gallagher






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