Free 12 month subscription to Electronic Gaming Monthly, with no catch (that I can find). Expires Jan. 15th. More Information Here.
Free 6 issue subscription to Computer Gaming World magazine. Expiration Unknown. More Information Here.
Get 50% off of anything available at belkin.com. Belkin makes UPS's, KVM's, surge protectors, mice and keyboards, cables, and other computer accessories. Expires Jan. 30th. More Information Here. (I myself made use of this one when I bought a new UPS the other day.)