Building a new PC (on a budget)

Hey guys, I am building a new PC. I am from the UK so please only list items which are based in Britain.
I don’t know what gpu to get?? I will buy one from the range of £120 – £180.. Also, if you think things should be changed, tell me – I am aware that some things are probably not worth the money :p
I have stuff for storage so d/w about that
Thanks
Here it is so far:
CPU: CPU: Intel Core i5 2500K 3.3GHz Socket 1155 6MB Cache Retail Boxed Processor (£170.98)
http://www.ebuyer.com/251596-intel-core-i5-2500k-3-3ghz-socket-1155-6mb-cache-retail-boxed-processor-bx80623i52500k
CPU cooler: Arctic Cooling Freezer 7 Pro rev 2 Socket 775, 1156, 1155, 1366, AM2, AM3 Heatpipe CPU Cooler (£15.98)
http://www.ebuyer.com/176157-arctic-cooling-freezer-7-pro-rev-2-socket-775-1156-1155-1366-ac-frz-7pr2
PSU: Antec 520W Neo Eco Modular PSU 80Plus Bronze (£51.02)
http://www.scan.co.uk/products/520w-antec-neo-eco-modular-psu-82eff-80-plus-bronze-sli-crossfire-eps-12v-quiet-fan-atx-scan-exclusi
RAM: G-Skill 8GB (2x4GB) DDR3 1600Mhz RipjawsX Memory Kit CL9 (9-9-9-24) 1.5V (£36.83)
http://www.ebuyer.com/264750-g-skill-8gb-2x4gb-ddr3-1600mhz-ripjawsx-memory-kit-cl9-9-9-9-24-1-5v-f3-12800cl9d-8gbxl
Motherboard: Asus P8Z68-V LX, Intel Z68, S 1155, DDR3, SATA III – 6Gb/s, SATA RAID, PCIe 2.0 (x16), D-Sub/ DVI-D/ HDMI, ATX (£80.02)
http://www.scan.co.uk/products/asus-p8z68-v-lx-intel-z68-s-1155-ddr3-sata-iii-6gb-s-sata-raid-pcie-20-%28x16%29-d-sub-dvi-d-hdmi-atx
Case: Coolermaster Storm Enforcer SGC-1000-KWN1Black Mid Tower Gaming Case w/o PSU (£69.54)
http://www.scan.co.uk/products/coolermaster-storm-enforcer-black-mid-tower-gaming-case-with-usb-30-w-o-psu
Answer #1
Those parts are solid except the cooler which I strongly suggest spending the little extra for a Hyper 212+ Evo or at least the regular 212+.
Answer #2
Thanks for your reply. Any suggestions on what GPU? Something which will handle skyrim and bf3 on ultra settings ?
Answer #3
I would reccomend waiting for the next gen amd cards which are coming out early next year and as paroxys m advised changing the cpu cooler but apart from that its a solid system.
Answer #4
A 560 Ti or 6950 2GB if you can afford one. Else an ordinary 560 or a 6870. You should wait though since the new cards should drop the prices of current cards considerably.
Answer #5
Thanks guys. Good advice.