Yeah but you want the 1GB version really...
http://www.overclockers.co.uk/showproduct.php?prodid=GX-135-OK seems good value considering some 460 1GBs cost more.
(I paid more for my 460, fml)
The thing about those OcUK value cards, is that you could get a 470 from any brand. However this could also be considered quite good.