Conwak :
Out of the ones you and bartos have mentioned, what is the best and cheapest option? Im looking for around about £150
Either one. The 965 and the 8120 perform about the same.
Why don't you just wait a month or two and get the extra 50 pounds you need for a new CPU and motherboard. It would be better in the long run. You're only patching the problem. The fix would be replacement. You wouldn't have to replace anything else. Use RAM, PSU etc over again.