Currently doing a few Mass Effect runs, to get all achievements and prepare for Mass Effect 2. Just finish my "canon" file to use for Mass Effect 2 (100% Paragon, freed the rachni, saved the council, completed the Ashley romance line, abandoned Kaiden on Virmire, basically made decisions on everything I felt might carry over to the next game).
After I finish getting the achievements for Mass Effect, I'll probably start doing the same for GTA IV and GoW2. SO I guess that's what I'm playing right now, or at least will be playing soon.