From www.scan.co.uk
LN17575
320MB EVGA 8800GTS, PCI-E (x16), Mem 1600MHz, GPU 500MHz, 96 Streams, 2x Dual Link DVI-I/HDTV £153.18 £179.99
LN19275
Intel Core 2 Duo E6750, S775, 2.66 GHz, 1333MHz FSB, Conroe Core, 4MB Cache, Retail £103.99 £122.19
LN14277
2GB (2x1GB) CorsairTwinX XMS2, DDR2 PC2-6400 (800), 240 Pins, Non-ECC Unbuffered, CAS 4-4-4-12, EPP £56.99 £66.96
LN18699
Asus P5K, iP35, S 775, PCI-E (x16), DDR2 667/800/1066*, SATA II, SATA RAID, ATX £62.95 £73.97
LN15216
520W Corsair HX Series Modular PSU, ATX, EPS12V, whisper quiet, 5 year warranty £54.89 £64.50
LN15198
Akasa Zen Case - Black Silent Cool Midi-ATX Computing case w/2 silent 12cm fans w/o PSU £24.49 £28.78
LN19006
Samsung SH-S203/BEBN 20x DVD±R, 16x DVD±DL, DVD+RW x8/-RW x6, SATA, Black, OEM inc. Nero £15.89 £18.67
LN17225
320 Gb Samsung HD321KJ Spinpoint T166, SATA300, 7200 rpm, 16MB Cache, 9 ms, NCQ £37.49 £44.05
Total = £612.87 including delivery
Once you've got it all setup, read this thread and overclock
http://forums.hexus.net/showthread.php?t=103676