Well if you're looking for a really killer deal and you have a credit card you can look in the forums for offer sites. If you check out places like the "Referral Central" area of the forums you'll find several different sites where you complete offers for games. If you haven't used them yet, you can get a few new games for only a couple of bucks. All you have to do is remember to cancel the offers you signed up for. I've done it myself and got a bunch of stuff for damn near nothing.