The New Xbox Experience comes out tomorrow although I got into the preview a couple of weeks back - everyone gets it no matter what tomorrow. Pretty cool. There's my Mr Spock avatar.

Left4Dead is seriously the funnest game. Unfortunately it's basically only co-op (or versus) so playing with bots is un-fun and boring. But you can get it through Steam and play on PC for those who don't like Xbox Live. Seriously, so much fun. (1st person zombie shooting game but it's just super thematic and exciting and fun.)