it will keep up just fine lol. im not sure about that mobo he suggested but most 920s will hit 4ghz, or if u wish to step back to 3.8ish that would be an easy oc. even for a beginner.
or maybe one 5970 if you can pick one up for around £500??? - Good thing about only having one card is firstly, noise, secondly heat and thirdly, there's always room for expansion.Oh I meant if a Phenom II would keep up with two 5870's
should be good enough for my budget