Viper190 said:
Yeah I want to build one from nothing, to be able to say, "It's mine!".
Rather than "oh I bought it from ...".
I checked out a few UK parts sites for prices; you could manage this for 1500:
CPU: Intel core i7 920 [http://www.microdirect.co.uk/Home/Product/38998/Intel-CPU-Core-i7-920-2-66GHz-S021624-]
MB: Gigabyte X58 UD4P [http://www.microdirect.co.uk/Home/Product/39729/Gigabyte-motherboard-EX58-UD4P]
RAM: 6 gigs Corsair DDR3 1600/8-8-8-24 [http://www.microdirect.co.uk/Home/Product/39738/Corsair-6144MB--XMS3-1600Mhz--DDR3-8-8-8-24]
GPU: XFX GTX 295 [http://www.microdirect.co.uk/Home/Product/39814/XFX-GeForce-GTX-295-1792MB-DDR3-Dual-DVI-S022436-]
PSU: Corsair 750W [http://www.microdirect.co.uk/Home/Product/31043/Corsair-PSU-750W-CMPSU-750TX-ATX12V-v2-2--5-year]
HDD: WD Caviar Black 1TB [http://www.microdirect.co.uk/Home/Product/37856]
Optical: LG BluRay/(HD)DVD [http://www.microdirect.co.uk/Home/Product/28997/LG-GGC-H20L-Blu-Ray---HD-Combi-drive-Black-SATA]
Case: <a href=http://www.microdirect.co.uk/Home/Product/16013/Antec-case-Nine-Hundred-Gaming-case-Black-full>Antec Nine Hundred
You could save some cash by salvaging your old hard drive and optical, and ditching the blu-ray. That PSU will easily power the system and leave room to overclock or add more drives, but if you want to toss in additional GPUs later, try something like this 900w OCZ [http://www.microdirect.co.uk/Home/Product/26412/OCZ-PSU-ModXStream-900W-Modular-Gaming] instead. It'll give you some breathing room on top of that GTX.
Lastly, if you want to really get into overclocking your CPU, see if you can track one of these [http://www.heatsinkfactory.com/thermalright-ultra-120-extreme-1366-rt.html] down from a UK seller, along with a tube of Arctic Silver thermal compound to mount it.