I've bought close to 20 games this year, but since I don't like paying more than 30 bucks for a game, almost all of them are older games. The only ones from 2009 that I have bought are SF4 and sonic's Genesis Collection.

Currently playing (just picked up all of these games in the last month or so):

Ninja Gaiden 2- Sweet, better combat than God of War!

Blue Dragon- Getting bored with this, about halfways through.

Mass Effect- Seems pretty cool, but have barely played the game, only 6 hours or so.

Gears of War- Fun shooter, even though I don't like shooters that much, but fun to play for an hour every now and then.

Forza 2- Sweet, lotsa cars, lotsa races, super fun!

Also, Crackdown and Kameo, both fun games.

games that haven't been mentioned yet:

Lost Odessey, Ninja Gaiden 2, Forza 2, Viva Piñata, PGR series, Blue Dragon, Perfect Dark Zero (I know, some people hate it, but it has a long campaign and you can play multiplayer with bots).