GPU: GTX 670

[JoeB361]

http://www.geforce.com/hardware/desktop-gpus/geforce-gtx-670  Average price: £310

The version of this card I got was the Palit. Pretty much standard, but overclocked.

The cards performance is incredible, couldn't ask for anything better. On BF3 ultra I get around 80 FPS, Crysis 2 Ultra with HD texture packs I get around 60fps.
The card can also be overclocked much further, but I haven't yet.

When im running intense games, the card can get pretty noisy, and temperatures reach above 70 degrees.
For that reason, I would say it's really worth getting the windforce edition, or one with at least two fans.
http://www.ebuyer.com/368520-gigabyte-gv-n670oc-2gd-gv-n670oc-2gd

Apparently they are much cooler, and quieter too with more efficient fans.

Overall I would really recommend this card, but it would have to be a version with more fans, and as long as your case has good cooling.