EXHIBIT 5.1

                       Opinion of Baker & McKenzie



September 14, 1999

DAOU Systems, Inc.
5120 Shoreham Place
San Diego, CA  92122

Ladies and Gentlemen:

We have acted as counsel to DAOU Systems, Inc., a Delaware corporation (the
"Company"), in connection with its filing with the Securities and Exchange
Commission under the Securities Act of 1933, as amended (the "Securities
Act"), of a Registration Statement on Form S-3, including exhibits thereto
(the "Registration Statement"), covering up to 2,750,000 shares of the
Company's common stock, par value $0.001 per share (the "Shares").

We have examined the originals, or photostatic or certified copies, of such
records of the Company, certificates of officers of the Company and of public
officials, and such other documents as we have deemed relevant and necessary
as the basis of the opinion set forth below. In such examination, we have
assumed the genuineness of all signatures, the authenticity of all documents
submitted to us as photostatic or certified copies and the authenticity of
the originals of such copies.

Based upon our examination, we are of the opinion that the Shares have been
validly authorized and are legally issued, fully paid and non-assessable.

We express no opinion as to the applicability of, compliance with, or effect
of federal law or the law of any jurisdiction other than the General
Corporation Law of the State of Delaware.

We hereby consent to the use of our opinion as herein set forth as an exhibit
to the Registration Statement and to the use of our name under the caption
"Legal Matters" in the prospectus forming a part of the Registration
Statement. This consent is not to be construed as an admission that we are a
person whose consent is required to be filed with the Registration Statement
under the provisions of the Securities Act.


Very truly yours,


BAKER & MCKENZIE


/s/ Baker & McKenzie