go the PS2 or a PC, i have all four and the PS2 has the best range of games out of the three consoles. you have GT3 and soon GT4 as well as hordes of other games. xbos has halo, now if you have played any first person pc games before you will see that halo is made up of modes, styles and AI, the whole game in fact (except for storyline, though its not that original) that would be outdate by 2-3 year old PC games, take halflife for example, all halo did was bring it to console.
people that own an xbox will try to tell you its faster, and it is but not by much, the arcitecture of a PS2 is IMO more supireor to that of a xbox which is why its graphics are still competitve with the xbox. all u need to do is look at the sales figures and see that sony are winning the war, there has to be a reason for that, ehh.
but if ya have the money get a PC, you have Halflife 2, world of warcraft, a Lord of the Rings RTS, Doom 3, and many more coming.
GO PC and DOD the halflife mod.