Exhibit 23.1

                    CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS

      As independent public accountants, we hereby consent to the incorporation
of our report dated March 1, 2001, included in this Form 10-KSB and into the
Company's previously filed Registration Statement File No. 333-13983 on Form
S-8, Registration Statement File No. 333-83103 on Form S-8, Registration
Statement File No. 333-03282-D on Form S-3, Registration Statement File No.
333-58653 on Form S-3, Registration Statement File No. 333-69477 on Form S-3,
Registration Statement File No. 333-71503 on Form S-3, Registration Statement
File No. 333-86465 on Form S-3, Registration Statement File No. 333-87887 on
Form S-3, Registration Statement File No. 333-67509, Registration Statement File
No. 333-33352 on Form S-3, Registration Statement File No. 333-46848 on Form
S-3.


                                                ARTHUR ANDERSEN LLP

Denver, Colorado
   April 2, 2001