AMD Athlon 64 3200+ Venice 90nm (Socket 939) - Retail (ADA3200BPBOX) (CP-118-AM)
£108.04
Gigabyte K8NMF-9 nForce4 Micro ATX (Socket 939) PCI-Express Motherboard (MB-041-GI)
£49.29
GeIL 1GB (2x512MB) PC3200 Value Dual Channel Kit CAS2.5 (GE1GB3200BHDC) (MY-005-GL) **this week only**
£52.84
XFX GeForce 7800GT Extreme Edition 256MB GDDR3 VIVO TV-Out/Dual DVI (PCI-Express) - Retail (PVT70G-UDF7) (GX-070-XF) **limited stock**
£176.19
Hitachi Deskstar 7K80 NCQ 80GB SATA-II 8MB Cache - OEM (0A30356) (HD-000-HI)
£37.54
Samsung SH-W162C 16x16 DVD±RW Dual Layer ReWriter (Black) (CD-068-SA)
£23.44
Antec SLK3800BUK Black Quiet Midi Tower Case - 400W SmartPower PSU (CA-048-AN)
£61.04
Total inc VAT: £508.38
If you want to get it even lower, swap the DVD-RW to a standard DVD player (e.g. Samsung SH-D162 DVD-ROM (Black) - OEM (CD-002-SA))