Tough choise, there are a lot of great games coming out this year.

But I would probably go for Fallout 3 (for the 360, Mines of Moria for PC).

Im deffinently getting fallout 3, as I have loved the first two games. Fallout 1 is one of my all time favourites.

Im probably also getting fable 2, but im not sure. Fable 1 was a big dissapointment for me. Felt quiet limited and there was a lot of great features I had been looking forward to that was left out of the final game. But fable 2 does look nice and the multiplayer feature could be a lot of fun.