New lower price for the Zotac - this card was £199 less than 2 weeks ago AND includes 2 games (unlike the Gainward at OC UK). Price above includes delivery (free as always at Ebuyer on purchases over £50).
I bought one at the older price and it's great, upgraded from an 8800GTS 640MB so the jump in quality/fps was significant, improving Crysis, COD4 and Assasins Creed considerably - plus you get the added PhysX support. It's quiet (the 4870 is supposedly a great deal noisier).
This price also brings the 260 in line with the 4870 (which Nvidia really needed to do). Both cards are about equal, though the 4870 may edge the 260 in some tests.
Only thing I'd be wary of before buying is the actual length of the card. I had to move one of my HDDs to allow the card to fit. It easily strecthes from one side of the board to the other, so consider that before a purchase. Plus you'll need to power connectors (my 800GTS only had 1) but an adapter is in the box, along with the games.
Product Description ZOTAC GeForce GTX 260 - graphics adapter - GF GTX 260 - 896 MB
Device Type Graphics adapter
Interface Type PCI Express 2.0 x16
Graphics Processor / Vendor NVIDIA GeForce GTX 260
Core Clock Speed 576 MHz
RAMDAC Clock Speed 400 MHz
API Supported DirectX 10, OpenGL 2.1
Video Memory Installed ( Max ) 896 MB - GDDR3 SDRAM
Video Output 2560 x 1600
Max Monitors Supported 2
TV Interface HDTV out
HDCP compatible Yes
Compliant Standards RoHS