Last advice before I buy my parts?

I think im about ready to build by gaming PC?

i5 3570K Quad Core £177.76
http://www.ebuyer.com/349029-intel-core-i5-3570k-3-4ghz...

Asus P8Z77-V LX Socket 1155 VGA DVI HDMI 8 Channel Audio ATX Motherboard
£89.70
http://www.ebuyer.com/363228-asus-p8z77-v-lx-socket-115...

Corsair Memory Vengeance Black 8GB DDR3 1866 MHz CAS 9 XMP Dual Channel Desktop £46.56
http://www.scan.co.uk/products/8gb-(2x4gb)-corsair-ddr3-vengeance-jet-black-pc3-14900-(1866)-non-ecc-cas-9-10-9-27-xmp-150v

XFX HD6850 £89.99 on offer - great value
http://www.ebuyer.com/391772-xfx-hd-6850-1gb-ddr5-dual-...


Zalman Z11 Plus High Performance Mid Tower Case £53.30
http://www.ebuyer.com/392396-zalman-z11-plus-high-perfo...


Corsair 600W CX Series V2 PSU - 6x SATA 2x PCI-E £53.44
http://www.ebuyer.com/269259-corsair-600w-cx-series-v2-...

Seagate 2TB ST2000DM001 2 platter £76.99
http://www.ebuyer.com/319641-seagate-2tb-barracuda-inte...

Samsung SH-222BB SATA DVD Write Optical Drive | OEM £12.99
http://www.ebuyer.com/342873-samsung-sh-222bb-sata-dvd-...

Samsung S24B350BS 24 inch Widescreen LED Monitor - Gloss Black (1920 x
1080 Full HD, 5ms, DVI/VGA) £119.99
http://www.amazon.co.uk/Samsung-S24B350BS-24-inch-Wides...

Coolermaster Hyper EVO £20.07
http://www.ebuyer.com/298308-cooler-master-hyper-tx3-ev...


£740.79