Looks OK, but you could get the OCZ gold RAM and shave £5 off. Change the Samsung drive for one of the 500GB Seagate 7200.12 and save another couple of quid (it will be faster too). Change the PSU to a corsair 400W, which is more than adequate for your needs, and then replace your frankly rubbish mobo with an intel G33/35/4x series one so you can get a decent OC out of the CPU. Even one of the cheapo G31s would be better than that one.
Hawker