looks really good, i know i'd be happy with that set-up.
if your not overclocking, i might change the RAM. The ones you've selected is great, but in tests I've read that 1066mhz at CAS 5 is faster than 800mhz CAS 4. It depends on the application but if I remember correctly it was constantly faster.
Since you were on Overclockers they have a bargain 1066 2gb for £41, so 2 of those = £82 just about the same price. only down side is 1yr warranty.