[Penwraith]

PS2 , X-BOX either one is a good choice ( good deals to be had for both systems) . For link play and great games I must say X-Box is better by a nudge. I own both systems and 90% of my gaming is on X-Box.
GT4 is good and a solid race title. Forza has just as good graphics but there's more you can get into.
The Splinter Cell games rule one X-Box. Like "Co-operative games" linked with headset. (eg.Choas Theory)

Just my 2 cents...