Nvidia GeForce 7900GT 256MB DDR3 DUAL DVI PCI Express
1 year warranty
Mine came as an XFX brand which seems very good. And, according to Tom's hardware site, this is faster than ATI X1950Pro and it's around a tenner cheaper (also I've read it runs cooler than the ATI which *may* mean a prolonged life, who knows).
There's scant details on the ebuyer site, not sure why, maybe they dont want to sell them, there's 20 in stock as of now. I'm sure you could look around for the rest of the specs...
Also free delivery with ebuyer atm.
I upgraded from an older ATI X1300, so quite a decent improvement, also upgraded PSU to 430w Antec (80%) as the old one (300w) would have fried possibly/probably. Never done it before, but easy enough job to fit.