Exhibit 23.1

CONSENT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS

We consent to the incorporation by reference in the Registration Statements on Form S-8 (No.’s 333-52704, 333-52716, 333-59795 and 333-29745) and Form S-3 (No.’s 333-87103, 333-68197, 333-52971, and 333-47777) of Daou Systems, Inc. of our report dated February 6, 2004, with respect to the financial statements and schedule of Daou Systems, Inc. included in the Annual Report on Form 10-K for the year ended December 31, 2003.

Philadelphia, Pennsylvania

March 29, 2004