Try these links
http://cgi.ebay.co.uk/NVIDIA-GIGABY...raphics_Video_TV_Cards_TW&hash=item3a5cb94d13
http://cgi.ebay.co.uk/ASUS-GeForce-...raphics_Video_TV_Cards_TW&hash=item4aa2ad0c9c
And since you are ready to spend 135GBP
I would rather go for the GTX 460 its an awesome card and kills GTX 260
http://cgi.ebay.co.uk/Nvidia-Geforc...TV_Cards_TW&hash=item41511b161e#ht_1924wt_794
The 480 would be a better deal,its brand new....DX11 ready aswell.
Tbh i dont think that Ebay sale was much of a deal tbh on the 260.