If you're a 360 owner, sign up for Gamefly. Not only do they offer a ton of great games for rent, but you can pick up games you want to keep for ~$46 when new.
It rocks, enjoy.
BTW, pick up Dead Rising immediately or Stickball and myself will drive to your house and beat you up because you suck at life.
Or check out my new webcomic: http://selfcentent.com/