Remember to reduce the warranty to minimum where applicable and take all Dell deals right through to checkout for final pricing.
Upgrade the CPU for free, add Vista Premium (should give upgrade rights to Windows 7?) Not the best spec but its cheap!
305-D082204 Small Business site - Best price £223.10 Delivered.
Vostro 220 MT (D082204)
Vostro 220 MT Standard Base Mini Tower Chassis
Intel® Core2 Duo E5400 processor (2.7GHz, 800MHz, 2MB cache)
Select this **Genuine Windows Vista® Premium with Service Pack 1, 32-bit - English
1024MB 800MHz Dual Channel DDR2 SDRAM [2x512]
160GB (7200rpm) Serial ATA Hard Drive with 8MB DataBurst cache
Integrated Intel Graphic Media Accelerator X4500
Display Not Included
Integrated 5.1 Channel Audio HD
Dell Entry Quietkey USB Keyboard - UK/Irish (QWERTY)
Dell 2 Button USB Optical Mouse
16x DVD-ROM Drive
1Yr Collect & Return Warranty - No Upgrade Selected