The components are as follows:
- Casecom KSM-7288 Piano Black Mid Tower Case - 2x USB2.0 on Front Panel
- Casecom 500W 12cm Fan PSU - 20+4pin, ATX12v, 4x Molex, 1x SATA - Retail Box
- MSI Z77A-GD65 Z77 Socket 1155 8 Channel HD Audio ATX Motherboard
- Intel Core i5 3570K 3.4GHz Socket 1155 6MB Cache Retail Boxed Processor
- Corsair Hydro Series H40 Hydro AMD Socket AM2 AM2+ AM3 AM3+ FM1 Intel 775 1155 1156 1366 Processor Cooler
- Crucial 16GB kit (8GBx2) DDR3 1600 MT/s (PC3-12800) CL9 @1.5V Ballistix Sport UDIMM 240pin
- MSI GT 610 2GB DDR3 VGA DVI HDMI PCI-E Graphics Card
- Liteon Ihas124 24x Dvd±rw (dual ±r)/ram Sata Drive (internal Black)
- Xenta All in 1 Internal Card Reader Plus One USB2.0 Port Black - 3.5" Bay
- Arctic Cooling F12 120mm Case Fan
- Xenta 8 Channel PCI Soundcard with SPDIF and cable included
- Seagate 500GB 3.5" SATA-III 6Gb/s Barracuda Hard Drive 7200RPM 16MB Cache
I also have Windows 7 in mind and a keyboard and mouse. This all comes out to £658.09 using http://www.ebuyer.com/