I'm currently playing:
Smackdown vs. Raw (PS2) -- Great wrestling game, too bad THQ won't be doing any more games for the WWE...
Vampire the Masquerade: Bloodlines -- Great graphics, awesome storyline, multiple endings. Problems-- more bugs than a trashcan in a public park, there's a patch that helps, but the occasional crash still happens. No updates anytime soon either, since Troika games went under.
Neverwinter Nights -- The great thing about this game is that you can go to the Bioware site and download free modules for it that were made by gamers for gamers. Once you weed out the crap, you can find some pretty awesome adventures to play.