http://www.cheapassgamer.com/media/gameimages/live_238.jpgUse coupon code SPLINTER to get $5 off any version of Tom Clancy's Splinter Cell Conviction. This brings the 360 version down to $46.99 and the PC version to $41.99. The coupon also works on the Limited Edition.
Splinter Cell...
Since you have an HDTV w/tuner built in you can get free HDTV channels with a regular over the air antenna. If you decide to keep it make sure to get the component cables so you can get HD resolution with the 360.