looks like its overpriced, due to the overwhelming amount of information. you take out the fat and it looks like a 3.4ghz, 2 sli-enabled 8800's, 2 500gb drives, 4 gig of ram, and way too many fans and lights that would suck up and waste alot of power
a 2.8gig, 8800, and 4 gig of ram would make up £600-700 usually
plus in 6 months i predict an 8800 would go down in price significantly