There's been a Holiday sale on Steam... And I took the opportunity to purchase several games very cheap.
I picked up Braid for just a couple dollars... Very interesting game. Very odd. Very challenging.
I also got both Oddworld: Abe's Oddysee and Oddworld: Abe's Exoddus for just a couple dollars. I played one of these games years ago... Never played the other one... And just vaguely remember any of it. But they're good, vague memories... So I figured I'd pick them up.
I also grabbed STALKER: Clear Sky for $5. I thoroughly enjoyed Shadow of Chernobyl, and I"m eagerly waiting for Call of Pripyat, so I thought I'd give Clear Sky a try. Hell, you can't go too wrong for just $5.