Right now, Morrowind GOTY, UFC Undisputed, and GH:WT.
I play WT with a family member and really enjoy it. UFC is great too. It took me several tries to get into Morrowind for a variety of reasons, but I think I've finally cracked it and have begun enjoying it a lot.
Half Life 2, I never really put time into until the last few days.
Awesome stuff man. I've played all of the HL series so far. Just waiting on Half Life 2 Episode 3 now.
Lately I've been playing either Smackdown vs Raw 09 or The Sims 2. Yep still playing Sims 2 even though Sims 3 is out. Not really wanting to start over after all these years of playing with my creations.
I've been playing Ghostbusters obviously. And I pop in UFC 2009 once in a while for a fight or two. InFamous has taken a temporary backseat. At work I've been playing Miami Law and I just "got" Transformers, but it sucks, so I won't play it anymore.