POWER OF ATTORNEY


	Know all by these presents that the undersigned hereby constitutes and appoints
Anthony M. Puleo and Jeff Lorenz, his true and lawful attorneys-in-fact to:

(1)	execute for and on behalf of the undersigned Forms 3, 4 and 5 in
accordance with Section 16(a) of the Securities Exchange Act of 1934 and
the rules thereunder;

(2)	do and perform any and all acts for and on behalf of the undersigned
which may be necessary or desirable to complete the execution of any
such Form 3, 4 and 5 and timely filing of such forms with the United
States Securities and Exchange Commission and any other authority; and

(3)	take any other action of any type whatsoever in connection with the
foregoing which, in the opinion of such attorneys-in-fact, may be of
benefit to, in the best interest of, or legally required by, the undersigned, it
being understood that the documents executed by such attorneys-in-fact on
behalf of the undersigned pursuant to this Power of Attorney shall be in
such form and shall contain such terms and conditions as such attorneys-
in-fact may approve in their discretion.

		The undersigned hereby grants to each attorney-in-fact, individually, full
power and authority to do and perform all and every act and thing whatsoever
requisite, necessary and proper to be done in the exercise of any of the rights and
powers herein granted, as fully to all intents and purposes as each attorney-in-fact
might or could do if personally present, with full power of substitution or
revocation, hereby ratifying and confirming that each attorney-in-fact, or his
substitute or substitutes, shall lawfully do or cause to be done by virtue of this
power of attorney and the rights and powers herein granted.  The undersigned
acknowledges that the foregoing attorneys-in-fact, in serving in such capacity at
the request of the undersigned, are not assuming any of the undersigned's
responsibilities to comply with Section 16 of the Securities Exchange Act of
1934.

		IN WITNESS WHEREOF, the undersigned has caused this Power of
Attorney to be executed as of this 31st day of December 2002.




		/S/ JOHN F. CHISTE
		Name:	John F. Chiste