Bit the bullet and splashed out on a system that's hopefully going to last quite a while 
OCZ ZX Series 850W '80 Plus Gold' Modular Power Supply
Asus Xonar DG 5.1 PCI Sound Card with built in Headphone Amp -
OcUK 22x DVD±RW SATA ReWriter (Black) - OEM
Seagate Barracuda Green 2TB SATA 6Gb/s Hard Drive - OEM
Crucial RealSSD M4 128GB 2.5" SATA 6Gb/s
OcUK GeForce GTX 580 1536MB GDDR5 PCI-Express Graphics
OcUK GeForce GTX 580 1536MB GDDR5 PCI-Express Graphics
Corsair Vengeance 16GB (4x4GB) DDR3 PC3-12800C9 1600MHz
Asus P8Z68 DELUXE Intel Z68 (Socket 1155) DDR3 Motherboard
Corsair Hydro H80 High Performance Liquid CPU Cooler (Socket
Intel Core i7-2600K 3.40GHz (Sandybridge) Socket LGA1155
Cooler Master HAF X Gaming Tower Case - Black (RC-942)
Dell UltraSharp U2711 27" Widescreen LCD Monitor
Hoping that I've not got anything wrong with the spec.
Fantastic service from the guys at OC, placed order yesterday and it's already built and will be despatched tomorrow.
Can't bloody wait lol!

OCZ ZX Series 850W '80 Plus Gold' Modular Power Supply
Asus Xonar DG 5.1 PCI Sound Card with built in Headphone Amp -
OcUK 22x DVD±RW SATA ReWriter (Black) - OEM
Seagate Barracuda Green 2TB SATA 6Gb/s Hard Drive - OEM
Crucial RealSSD M4 128GB 2.5" SATA 6Gb/s
OcUK GeForce GTX 580 1536MB GDDR5 PCI-Express Graphics
OcUK GeForce GTX 580 1536MB GDDR5 PCI-Express Graphics
Corsair Vengeance 16GB (4x4GB) DDR3 PC3-12800C9 1600MHz
Asus P8Z68 DELUXE Intel Z68 (Socket 1155) DDR3 Motherboard
Corsair Hydro H80 High Performance Liquid CPU Cooler (Socket
Intel Core i7-2600K 3.40GHz (Sandybridge) Socket LGA1155
Cooler Master HAF X Gaming Tower Case - Black (RC-942)
Dell UltraSharp U2711 27" Widescreen LCD Monitor
Hoping that I've not got anything wrong with the spec.
Fantastic service from the guys at OC, placed order yesterday and it's already built and will be despatched tomorrow.
Can't bloody wait lol!