Finished Mass Effect 3, wow, that ending... It's so bad...
Anyway, games I'm playing currently:
I occasionally play Age of Empires III, Phantasy Star Universe, Phantasy Star Online, FIFA 12, DiRT 3, Battlefield 3, Team Fortress 2 and Left 4 Dead 2 (all on the PC).
Some of these I rarely play, I might stay weeks or even months without playing (especially L4D2 and PSO, which I only play with my brother, and he doesn't have much free time).
The game I'm most likely going to be playing more now is Metro 2033, got the game for 2.50€ months ago but I haven't played it yet, so going to start playing it now.
I'm also waiting for Rayman Origins to be released for PC (it's going to be released on March 29).