As tempting as the 1055T is, I think that's one for a future upgrade when 6 cores are more widely utilized.
Few more questions before making a final decision...
1 - Is the 965 worth the extra £15 over the 955?
2 - Would that 500w Antec PSU be enough even if I were to overclocking either of the above chips?
3 - Stulid, is that configuration fully compatible and ready to go out of the box? I only ask as I vaguely remember reading the other day about some AMD BIOS issues and needing an older chip to update the BIOS before the new chip would work with the mobo. Not sure if these were the components in question, however.
Cheers for the advice to you both.