Hi,
I bought a re-furb 8800gts 640 a couple of months ago to replace a de-funked 7900 and so far it has handled everything I've thrown at it (with the exception of FSX). I paid a little over 60 quid for it, and for me, if it only lasts a year, it's money well spent and by then the 460/70/80's will have dropped in price so I can upgrade.
I bought a re-furb 8800gts 640 a couple of months ago to replace a de-funked 7900 and so far it has handled everything I've thrown at it (with the exception of FSX). I paid a little over 60 quid for it, and for me, if it only lasts a year, it's money well spent and by then the 460/70/80's will have dropped in price so I can upgrade.