Ok can you guys recommend a CUDA gfx please?
Is this ok:
Gigabyte 9500GT OC 512MB GDDR3 VGA DVI HDMI Out PhysX and Cuda ready PCI-E Graphics Card
Gainward GeForce GTS 250 Deep Green Edition 512MB GDDR3 PCI-Express Graphics Card £89.29
That would be a nice card if it fits your budget (replacing XFX card I originally suggested.
http://www.overclockers.co.uk/showproduct.php?prodid=GX-110-GW