Anyway sorry to go off topic for a bit about PSU's but anyway...
My comments on the XFX GTX260 Black Edition are that its a great card, pushed a little i can get the core/mem/shader clocks to 730/2546/1520 so performance is not an issue.
Ok so the £230 i paid is a bit more than the 4870 1gb but the rest of my parts are sli ready and i did get FarCry2 and 3DMark Vantage bundled with it. I dont feel ripped off at all as its coping with all my demands no problems. Thank you XFX.