So I've been playing around with that cyberpowersystem.co.uk site that Arslay provided, and with inspiration from some of your replies I've come up with:
* CPU: AMD Athlon™II X4 645 Quad-Core CPU w/ HyperTransport Technology
* HDD: 500GB SATA-II 3.0Gb/s 16MB Cache HDD (Single Hard Drive)
* MEMORY: 4GB (2x2GB) PC10666 DDR3/1333mhz Dual Channel Memory (Corsair Value Select or Major Brand)
* MOTHERBOARD: ASUS M5A78L-M/USB3 AMD 760G (780L) Chipset DDR3 Socket AM3+ Micro-ATX w/ 7.1 Audio, GbLAN, USB3.0, SATA-III, 1 PCIe X16, 1 PCIe X1, & 2 PCI
* SOUND: HIGH DEFINITION ON-BOARD 7.1 AUDIO
* VIDEO: NVIDIA GeForce GTX460 1GB 16X PCI Express [+76] (Major Brand Power by NVIDIA)
http://www.cyberpowersystem.co.uk/sy..._Configurator/
for a grand total of £432 including shipment and taxes. (~$700), which sounds pretty cheap. Now first of all; will that setup work? Will it work too well for the job of running WoW or does it need more juice? Perhaps we could even make it cheaper by stripping some things down on it?
As always I appreciate any help.