The Seagate 7200.11 series are starting to trickle in, I highly recommend you get one of those, as warriorscot has said, 1TB is just for bragging rights, anything over 750GB is overkill, way over.
The new GPU's from Nvidia were never rumored to be DX11, I don't know where you even heard this rumor as DX11 is likely just starting the development stages, never mind the hardware to support it.
I highly recommend you wait, you'll really regret it if you don't. With new GPU's being released this season from Nvidia and ATI (don't know what segment of the industry (low, mid or high) they are aiming for at this point in time). No one knows what to expect from Nvidia and I don't think we'll know much till the card is released (look at HD2900XT), I for one think it's over hyped, but I really think rumor sites are just making up BS on this card to get hits. In January 2007 Nvidia stated that they would be releasing a round of high end card in November then to be followed later on in the year will budget end cards.
While Intel will be entering the discreet GPU market, we don't know when, no point on saying they will be coming out in November.
Never get 3 sticks, get 4, since it seems like you have money to really burn. If you plan on overclocking be sure to get a stick that potentially has the micron 9HC chips, they overclock far better (cost is also much higher, you only need these if you want to push your system to the absolute max, I think it's a waste personally, your call though).
New CPU's are coming out in January from both AMD and Intel (should there be no delays).
Surprised no one has mentioned this yet (unless I missed it when reading this thread), but unless you have a server board, your not going to fit any more then 4 stick of RAM on your motherboard.
I highly recommend getting this all at once, after all what a good CPU if you have an onboard GPU, your just waiting a good CPU in terms of gaming as the onboard graphics will be a several bottleneck.
If you going with Nvidia stick with the 680i (x38 arn't worth the money and it cannot support SLI nor can the P35) , for that matter Nvidia is also releasing the 730i soon, pretty sure they will have this out for the christmas season because of the booming market, but i'm just taking a guess here.
Just to echo what has already been said get no more then a 850W PSU, to be honest you'll never need more then a 750W PSU, my only recommendation get one with 8pin PCIe cables (among other things), I'll suggest a PSU for your given price range (need a UK site though).
If your gaming in 7.1 suround sound you need a sound card, but again you need to wait as everything is moving from away from directsound3D, since the introduction of vista.
Just out of curiosity, do you even plan on overclocking?
Edited by james_8970, 04 October 2007 - 11:02 PM.