American Enterprise.com, National Diagnostics, Inc. and Optimark Data Systems, Inc. Make Announcement.

TAMPA, Fla.--(BUSINESS WIRE)--Nov. 30, 1999--

American Enterprise.com ("AESI"), National Diagnostics, Inc. ("NATD") (OTCBB:NATD), Optimark Data Systems, Inc. (OTCBB:OPMK) (VSE:ODS) jointly announced today the following:

-- AESI has received a $25 million Private Placement Memorandum 

engagement agreement from a tier-one New York investment banking

firm;

-- AESI has received a $2 million commitment from a Florida investment

firm;

-- AESI has a $3 million convertible bridge loan pending;

-- AESI has pending $15 million debt refinancing for all subsidiary

companies;

-- AESI has entered into a $6 million investment memorandum of

understanding with Unibased Systems Architecture ("USA") of St.

Louis. USA is implementing its most advanced enterprise scheduling

system in the United States (which is an integral part of

VitalTrust.com Internet utility) as part of the agreement;

-- In December of this year, AESI is filing an Information Statement

with the SEC detailing the reverse merger into NATD, its 90% owned

subsidiary under following terms:

-- NATD's existing public trading shareholders (representing about

10% of the outstanding shares) will be credited $3.50 for each

NATD share held in exchange for AESI publicly trading stock. At

the fixed price of $10 per share;

-- NATD will reverse its stock four to one;

-- As part of the Information Statement filing, AESI will also be

filing for NASDAQ National Board status;

-- AESI Information Statement filing will also include the closing of

pending acquisitions of Florimed, Inc., Capra Technologies, Inc.,

Optimark Data Systems, Inc., and Total Employment Company, Inc.

Upon the completion of the merger, the combined companies year 2000

run-rate is estimated to be $152 million with earnings of

$13 million (based of fourth quarter 1999);

-- Further, AESI owns 100% of VitalTrust.Com, which is a business

healthcare multi-media Internet utility being developed in concert

with MCI WorldCom, UU Network, IDX, 3M, USA, InfoGear, along with

18 other companies.

-- AESI has acquired over 51% of Optimark Data Systems, Inc.

("Optimark"). Upon completion of the public merger, AESI will

submit a tender offer to acquire all outstanding shares of Optimark

Data Systems, Inc., at $1 Canadian (converted at the current U.S.

exchange rate) into AESI trading stock at the fixed price of $10

per share.

Chuck Broes, CEO of AESI is quoted as saying, "Upon acceptance and approval by our board, and subject to the final terms and conditions of all parties, the tier-one lead Underwriter of the $25 million Private Placement Memorandum will be entitled to become the lead underwriter of the Initial Public Offering ("IPO") of VitalTrust.Com, a totally owned subsidiary of AESI. VitalTrust.Com is anticipated to be spun off from AESI to the benefit of the AESI shareholders-of-record sometime during year 2000."

Mr. Broes went on to state that AESI is conducting a press conference call tomorrow at 2:00 pm EST. Anyone interested in participating may call [phone]. Your call should be received ten minutes prior to the scheduled conference. The call will be limited to 75 participants. A question and answer session will be included.

Paradigm One, "Health Centers of Excellence" (Care1.Com), implements community health enterprises (a relationship enterprise) by establishing partnerships with "best of breed" provider groups in each of the 262 market service areas (MSAs) in the United States.

Paradigm Two, involves the creation of "VitalTrust.Com." This Internet utility is an industrial grade, multi-media Internet/intranet system capable of practically eliminating paper transactions. The new information flow -- like that in banking and travel -- creates real time transactions with data repository and mining capability. Opportunity is created to reduce costs, enhance efficiency and create an infinite variety of e-content and e-commerce opportunities.

Mr. James Whitmire, C.E.O. of VitalTrust.Com, said, "We are introducing one of the largest Internet facilities in the world, which can receive, move, store and manipulate billions of multi-media transactions a day to and from anywhere in the world." He further stated: "It is being built in Tampa, Fla. by AESI in concert with eighteen international and national Internet firms. The utility is designed with five major gateways and hubs that link thousands of portals to each other, linking all the healthcare trading partners in a real-time interactive network."

Benedict Maniscalco, M.D. and C.E.O. of "Health Centers of Excellence" (Care1.Com) stated: "VitalTrust.Com's healthcare Internet utility and the combined companies' high-tech and high-touch Internet appliances, including remote digital telemetry systems, will allow physicians and other caregivers to reach out virtually to the consumer/patient anywhere in the world, thereby empowering the patients with their physician in the management of their health."

Safe Harbor Statement under the Private Securities Litigation Reform Act of 1995: The statements which are not historical facts contained in this press release are forward-looking statements that involve certain risks and uncertainties including but not limited to risks associated with the uncertainty of future financial results, additional financing requirements, development of new products, government-approval processes, the impact of competitive products or pricing, technological changes, the effect of economic conditions and other uncertainties detailed in the Company's filings with the Securities and Exchange Commission.