Here two choices:
Intel Core 2 Duo E6850 "LGA775 Conroe" 3.00GHz (1333FSB) - Retail
Thermalright Ultra-120 Extreme (Socket AM2/LGA775) Heatsink
Gigabyte GA_P35_DS4 (Socket 775) PCI-Express DDR2 Motherboard
OCZ 4GB (2 x 2GB) PC2-6400C5 Dual Channel Vista Gold Series DDR2
BFG GeForce 8800 GTX OC 768MB GDDR3 HDTV/Dual DVI (PCI-Express)
Creative Sound Blaster X-Fi Xtreme Music 7.1 Soundcard
Western Digital Caviar SE16 320GB 3200AAKS SATA-II 16MB Cache
Samsung SH-183LBEBN 18x18 DVD±RW Dual Layer Serial ATA Lightscribe
Corsair HX 520W ATX2.2 Modular SLI Compliant PSU
Lian-Li PC-7 PLUS Aluminium Midi-Tower Case - Black
Total : £1,234.16
Or with the Intel Core 2 Quad Pro Q6600 "LGA775 Kentsfield" 2.40GHz (1066FSB) which would come to:
Total : £1,269.41
For the E6850 you will have to wait till the 22nd of this month, since it isnt yet out. If your going for the Quad, its also a good idea to wait till the 22nd since it will be around the £180 mark.