yeah but Doom 3 on the XBOX is not the same as on the PC :-)
I'd agree that if you are serious about your gaming on a PC it will cost you a darn sight more than the console based alternative. I just spent £800 on new parts for a new machine. This is so I could play lots of games (though it was about time to upgrade anyway) that I were unable to on my other machine. Though most people wouldnt moan about the specs on my old machine.
Personally I far prefer my PC to my XBOX. End of the day I just think I am a keyboard and mouse person. I just can't play games like Doom 3 without a mouse.
So what do you think of Doom 3? Scared yet?