I'm a mac guy, but I've kept my PC around to play some games on. Mostly FPS's. It's a P4 HT 3.0ghz with a decent video card, but it's starting to get too slow for me on the new games. The money is not an issue. Should I spend the $800 it takes to upgrade my new PC with a better processor and video card, or should I spend the $500ish it will take to buy a decent xbox 360 setup? Why one over the other?