I'll have another go, slightly different angle this time:
CP-148-AM AMD Opteron UP 170 Dual Core San Diego 2.0GHz 2MB Cache (Socket 939) - Retail (CP-148-AM)
£299.95 £299.95
MB-014-DF DFI LanParty UT NF4 Ultra-D (Socket 939) PCI-Express Motherboard (MB-014-DF)
£84.95 £84.95
MY-002-MK Mushkin 2GB DDR XP4000 Redline Extreme Performance Dual Channel Kit (2x1GB) (991493) (MY-002-MK)
£214.95 £214.95
GX-087-AS Asus ATI Radeon EAX-X1900 XT-X 512MB GDDR3 AVIVO TV-Out/Dual DVI (PCI-Express) - Retail (GX-087-AS)
£424.95 £424.95
HD-015-WD Western Digital Raptor 74GB WD740GD 10,000RPM SATA 8MB Cache - OEM (HD-015-WD)
£93.95 £93.95
HD-058-SE Seagate Barracuda 7200.9 NCQ 250GB ST3250824AS SATA-II 8MB Cache - OEM (HD-058-SE)
£65.95 £131.90
CD-032-PL Plextor PX-750A 16x16 Dual Layer DVD±RW ReWriter - (Black/Beige) Retail (CD-032-PL)
£42.95 £42.95
HS-008-VP VapoChill Micro Ultra Low Noise (Socket 754/939/940) (06-L-0018) (HS-008-VP)
£29.95 £29.95
SC-032-CL Creative Sound Blaster X-Fi Fatal1ty FPS Edition - Retail (SC-032-CL)
£128.95 £128.95
CA-006-SV Silverstone Temjin TJ05 - Silver (No PSU) (CA-006-SV)
£69.50 £69.50
CA-024-EN Enermax Liberty 620W ELT620AWT ATX2.2 Modular SLI Compliant PSU (CA-024-EN)
£89.95 £89.95
MO-013-AC Acer AL2416Ws 24" Widescreen LCD Monitor - Black/Silver (MO-013-AC)
£519.95 £519.95
KB-069-LG Logitech G5 Gaming-Grade Laser Mouse (KB-069-LG)
£37.95 £37.95
KB-000-SL SpeedLink Ultra SL-6465 Flat Metal Keyboard (KB-000-SL)
£19.95 £19.95
Subtotal £2,189.80
VAT £383.22
Total £2,573.02
Laves you spare change

, and possibly with the option of upgrading to an extra x1900xtx and the dfi xfrire mobo which is currently out of stock.