I'm a noob in building, but through trial and error, I can usually get a CPU up and running within a day. It's been about 3 years since I've built my first CPU and now I want to upgrade. I have about 300 dollars to spend. I'll be transferring over my DVD-RW, 60 gig HD, my case, cd-rw. What I want to know is what Video Card and how much RAM I will need to play the newest FPS games: Half Life 2 (predominantly), Doom 3, the good stuff. So what do processor, vid card, ram, etc do I need to get? TIA!