At this point, here's my deal on this...
I have an X-Box, so if I get it, it's likely for the X-Box as my PC (while nice) is a Win 98 machine and I'm finding games are now going to NOT running on an OS this old. I'm not one for upgrading unless I get a SECOND computer to run my old games on. CorranHorn mentioned that option to me, and while obvious, it had never even dawned upon me.
So, at this stage of the proverbial game, I'm an X-Boxer, but, I'm sad to see the MAJORITY of you are playing PS2 or PC, so if I'm doing this on PC I'll be a later arrival... Till I can figure what the hell I'm doing here.
I'm not an MP gamer fan, so I'd be doing this just to participate. I don't even have X-Box Live, so actually I doubt I even get this for X-Box. Plus PC's gonna have mods for this, you know it, and they're going ot make owning the PC version 10x better anyway... So, PC's what I'm aiming for, but sometime down the road. X-Box is unlikely for me right now because I'm not paying for XB Live till I have $.