1 Exhibit 23.1 CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS As independent public accountants, we hereby consent to the incorporation of our report included in this Form 10-K, into the Company's previously filed Registration Statements File No.'s 333-29485, 333-57163, 333-92149 333-95487, 333-90353, and 033-28483. ARTHUR ANDERSEN LLP Orange County, California March 27, 2000