Recommendations?

Im looking to spend £300-£500 (Thats $500-$800) on a computer.
I'm thinking of building it myself.
What do you think are the best specs I can get for that price?
I dont exactly want to squeeze every last penny out of my budget either, part of why im building, so im also asking you guys what kind of money I should spend so I get good value...
Help me out

There's a /g/uide that gets posted on /g/ quite a lot. you should use that

====accept credit card and paypal
(((   http://www.voguecatch.com   )))

Cheap Nike air Jordan shoes33$,Air Force 1  33$, Nike dunks SB shoe,Nike Shox shoe. Wholesale Cheap Nike shoes with discount jersey, High quality T-shirts,ED hardy t-shirts,ED Hardy hoodies,ED hardy shoes,ED hardy Jeans,Evisu shoes,GUCCI shoes,LV Handbag,Chanel Handbag……welcome to     
(((  http://www.voguecatch.com  ))))


online shoping ! welcome to  (((  http://www.voguecatch.com  )))

online shoping ! welcome to  (((  http://www.voguecatch.com  )))