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                                                                    EXHIBIT 23.3

                       CONSENT OF INDEPENDENT ACCOUNTANTS

We hereby consent to the use in this Registration Statement on Form S-1 of our
report dated February 8, 1999, except as to Notes 4 and 11, for which the date
is March 31, 1999, relating to the financial statements of Acuity Corp., which
appear in such Registration Statement. We also consent to the reference to us
under the heading "Experts" in such Registration Statement.

PricewaterhouseCoopers LLP

Austin, Texas
November 8, 1999