Hehe sithspawn I know I can overclock that far, but at the moment my RAM is no good, I would like to change the multiplier but that is not possible.
Anyway back to topic, something like this ratty: £575.54
Coolermaster Centurion CAC-T01UK Black (Aluminium/Zinc-coated steel) £37.01
AMD *Retail* Athlon 64 3500 64Bit (32 Bit compatible) CPU Socket 939 £237.76
256Mb Sapphire Radeon 9600 XT x8 AGP Tv-out, DVI (Retail) £112.21
80Gb Maxtor ATA-133 (7200rpm,2MB) £36.88
512Mb PC3200 (PC400) DDR Memory (Major) Retail £49.57
Asus A8V Deluxe, VIA K8T800PRO, Gbit LAN, 802.11g Wireless LAN, USB 2.0, 1394, 8Ch Audio, SATA, Raid £90.35
It has no monitor, PSU, keyboard, mouse, speakers, soundcard, CD-ROM/DVD, and Operating System.
£560 is a very limited budget (not offending you).