You should definitely change the hard drives dude, there's no point in having one fast if the other one's gonna drag it down. You should get 2 74gb SATA raptors and RAID 0 them. Then load times won't be a problem. If you need more storage you should get a huge 7,200rpm drive and call it D:. The Cuda you're looking at is great, the fastest seeking 7200rpm drive on the market. And Maxtor by the way, is total crap. My own stepdad recommended them to me, so I got them. I have 2, one in 2 computers, and they are the loudest, most annoying drives around. Right when I got them (at different times), as soon as I hooked them up they make this high pitched buzzing sound that only goes away about 10 seconds after the computer shuts down (that's how long it takes to spin down, at least from what I HEAR coming from them). Also, you got an SLI motherboard and you're not gonna SLI it?! Go ahead and get a second 6800, but you should make both Ultra's, not GT's. Your Athlon could go higher, but I'm not sure how much you want to spend. You could get an FX55 or 3800+ or something. And if you really want to have a sweet computer and don't mind how long you'll spend building it, you might want to think about getting it water cooled. Your DVD burner is kind of a waste of SATA if it only burns 4x. You should probably get it IDE (it's not gonna slow it down) and get a 16x. But other than that you got yourself a sweet rig. Good luck on that man, when you get it running you're gonna be blowing just about ALL competition out of the water.