I just completed Skate 2 which was actually quite a good game. Probably the best skateboarding game I've ever played at least!
I have started on Mass Effect 2, but while I thought the first was good, I'm not a super diehard fan. I expect it will be good, but I also expect there will be tons of overrated and slightly boring dialogue and generic quests where you hunt down NPCs you need to talk to and so on .. My motivation is rather average.
I'm really looking forward to Bioshock 2 though. Really!