With the introduction of the new dual core cpu's dell have reduced the price of this nice top end one too.
307-D08912 - £792 or less delivered
Intel® Pentium® D 945 Dual Core Processor (3.40GHz, 800MHz fsb, 2x2MB cache)
Genuine Windows® XP Professional, SP2 (incl Symantec PC Restore Recovery)
Processor upgrade from Pentium D 930 to Pentium D 945 included in your offer
1024MB Dual Channel DDR2 533MHz [2x512] Memory
500GB Serial ATA RAID 0 Stripe [2x250GB 7200rpm drives with DataBurst cache]
16x max. DVD+/-RW Drive
No Security/Anti-Virus Protection
256MB nVidia GeForce 7900GS graphics card
Dell 19" Value Flat Panel (E196FP)
Integrated Audio with Dolby Digital 7.1 capability
Reduce the warranty to minimum and buy via Quidco for further savings.