Here's the specs I'm going to buy from scan:
-i5 3570k retail --- £179
-Corsair Carbide series 300r --- £45
-2GB MSI Radeon HD 7850 Twin Frozr III OC ---- £180
-Gigabyte GA-Z77-D3H, Intel Z77 --- £77
-8GB (2x4GB) Corsair DDR3 XMS3, PC3-12800 (1600) --- £42
-1TB Seagate ST31000524AS Barracuda 7200.12, SATA 6Gb/s, 7200rpm, 32MB Cache, 8.5ms --- £62
-650W Coolermaster GX RS650-ACAAE3-UK, 85% Eff', 80 PLUS Bronze --- £57
Total: £661.25 with delivery.
Any improvements for me? Thanks