I have not yet bought the parts below but those are the firm choices i will be sticking too, the only thing I'm confused about at the moment is the graphics card, specifically the zotac geforce gtx 580 3gb. it seems like a good card to me but would like your advice/opinions on it. also, vs EVGA geforce gtx 580 3gb, amazon sells the zotac for ~£314 whilst the EVGA one is ~£470. what I would like to ask is, is there much difference between the two to warrant that much of a price difference?
For that price difference just go with the Zotac one. However, at 1920x1080, you dont really need 3GB of ram. You can go with a 1.5GB card, or even something like a 7970 (not sure on UK prices, but yeah...)