Asus GeForce GTX 560 + (claim a FREE download voucher for Shogun: Total War 2) - £129.99 @ Dabs.com + 2% Quidco
Seems a good price for what you get and also cheaper than a few other places that won't give you the FREE game, which you can always sell on eBay to make the price even cheaper.
£160.51 @ Play.com
£152.48 @ Amazon.co.uk
£145.87 @ Scan
£137.12 @ Ebuyer.com