Just received details of this deal from Buy.com... 

If you sign up for the RevolutionCard, you get $50 off a $51+ purchase instantly.  This card has no annual fee as well.

Use this on anything at Buy.com like consoles, games, tech, etc... 

This offer is running through March 21, 2008.

Check it out:  Buy.com Revolution Card - Apply Now and get $50 off $51 your next Buy.com purchases exp 3/21/08