I'm playing the following games:

Mass Effect 3 - Sometimes my insanity run but mostly this is my multiplayer baby at the moment.

Assassins Creed 2 - My main single player enjoyment so I can get through these games before buying 3

Forza Motorsport 3 - I love racing games, I found it hilarious and at the same time pleasing that when I put the game on hard it's easy and if I put it on Advanced (no TCS no assists and manual gearbox) I'm still a serious racer. One of these days I am going to try Expert and see how I do when I got to manage the clutch too!