If you really, really wanted to spend all of the cash then something like this might do. You'll need to check Ram compatability properly though and the CPU is still pre-order on OcUK. Personally I'd spend about £1,500 and get a 24" monitor instead of the 30" which reduces the other system requirements as well.
Antec P182 Super Midi Tower Case - No PSU (Gun Metal Black) £78.99
(£92.81) £78.99
(£92.81)
Sony NEC Optiarc AD-7200S 20x DVD±RW SATA Dual Layer ReWriter (Black) - OEM £16.99
(£19.96) £16.99
(£19.96)
Dell Ultrasharp 3007WFP-HC 30" Widescreen LCD Monitor - Midnight Grey £715.00
(£840.13) £715.00
(£840.13)
Tuniq Tower 120 CPU Cooler (Socket 478/754/939/940/AM2/LGA775) £27.99
(£32.89) £27.99
(£32.89)
Seagate Barracuda 7200.11 500GB SATA-II 32MB Cache - OEM (ST3500320AS) £65.99
(£77.54) £131.98
(£155.08)
Microsoft Windows Vista Home Premium 64-Bit Edition DVD - OEM - 1Pk (66I-00788) £59.99
(£70.49) £59.99
(£70.49)
Corsair HX 620W ATX2.2 Modular SLI Compliant PSU (CMPSU-620HXUK) £74.99
(£88.11) £74.99
(£88.11)
Asus Striker II Formula nForce 780i (Socket 775) PCI-Express DDR2 Motherboard £199.99
(£234.99) £199.99
(£234.99)
OCZ 4GB (2x2GB) PC2-6400C4 800MHz ReaperX HPC Enhanced Bandwidth Edition Dual Channel DDR2 (OCZ2RPX800EB4GK) (Deal Product) £69.99
(£82.24) £139.98
(£164.48)
OcUK GeForce 8800 GTX 768MB GDDR3 HDTV/Dual DVI (PCI-Express) - OEM £199.99
(£234.99) £399.98
(£469.98)
Intel Core 2 Quad Q9450 LGA775 'Yorkfield' 2.66GHz 12MB-cache (1333FSB) Processor - Retail £199.99
(£234.99) £199.99
(£234.99)
Sub Total : £2,045.87
Shipping cost assumes delivery to UK Mainland with:
City Link Parcel Next Day (Delivered Mon-Fri)
(This can be changed during checkout) Shipping : £26.33
VAT is being charged at 17.5% VAT : £362.63
Total : £2,434.83