Well I imagine I'd buy a nice them first and foremost, I noticed a nice Alan Wake them on a video a while ago and felt that the scenic forsests and rivers would make a nicer dashboard than my current Left 4 Dead one that I got free from an Xbox Magazine disc.
Then I'd give my avatar a sweet new wardrobe, maybe get around to downloading Psychonauts (last time I found myself with a bounty of points I wanted to but I didn't have the space, I believe I purchased Super Meat Boy and Undead Nightmare before using the remainder on the First Strike pack) and then maybe have a movie night with friends and family through Zune and use the rest for any good-looking arcade games and DLC packs.
Then I'd give my avatar a sweet new wardrobe, maybe get around to downloading Psychonauts (last time I found myself with a bounty of points I wanted to but I didn't have the space, I believe I purchased Super Meat Boy and Undead Nightmare before using the remainder on the First Strike pack) and then maybe have a movie night with friends and family through Zune and use the rest for any good-looking arcade games and DLC packs.