4GB RAM / 500GB Hard Disk Drive
DVD/RW Dual Layer Optical Drive
Genuine Windows® 7 Professional 64-bit + Win8 Pro RDVD
Included: Lenovo 3 Year Onsite NBD Warranty
£337.99 + delivery but £100 cashback when you register warranty.
http://www.misco.co.uk/product/216156/Lenovo-ThinkCentre-Edge-72-Small-Form-Factor-PC-Intel-Core-i3-3240-4GB-500GB-Windows-7-Professional-Windows-8-Professional-plus-3-Year-Onsite-NBD-Warranty
Snag is the graphics are intel on the motherboard, and I'm not sure if it's possible to add a graphics card - anyone know?