Based around the first two parts you specified I'd consider something like this. Sorry I can't be bothered to reformat the terrible layout that the new website gives the list.
Intel Core 2 DUO E6600 "LGA775 Conroe" 2.40GHz (1066FSB) - Retail £194.99
(£229.11) £194.99
(£229.11)
GeIL 2GB (2x1GB) PC6400C4 800MHz Ultra Low Latency DDR2 Dual Channel Kit (GX22GB6400UDC) £169.99
(£199.74) £169.99
(£199.74)
Seagate Barracuda 7200.10 250GB ST3250620AS SATA-II 16MB Cache - OEM £51.99
(£61.09) £51.99
(£61.09)
Asus P5W DH Deluxe WiFi (Socket 775) PCI-Express DDR2 Motherboard £134.99
(£158.61) £134.99
(£158.61)
BFG GeForce 8800 GTX 768MB GDDR3 HDTV/Dual DVI (PCI-Express) - Retail £414.99
(£487.61) £414.99
(£487.61)
NEC ND7173 18x18 DVD±RW Dual Layer LabelFlash ReWriter (Black) - OEM £19.99
(£23.49) £19.99
(£23.49)
Lian-Li PC-7 PLUS Black Aluminium Midi-Tower Case (No PSU) £48.99
(£57.56) £48.99
(£57.56)
Corsair HX 620W ATX2.2 Modular SLI Compliant PSU (CMPSU-620HXUK) £99.99
(£117.49) £99.99
(£117.49)
Tuniq Tower 120 CPU Cooler £28.99
(£34.06) £28.99
(£34.06)
Sub Total : £1,164.91
Shipping cost assumes delivery to UK Mainland with:
City Link Parcel Next Day (Delivered Mon-Fri)
(This can be changed during checkout) Shipping : £10.95
Vat : £205.78
Total : £1,381.64
