ASUS A7N8X Motherboard AthlonXP 3000+ (SocketA), oc'd to 2.4GHz (new Thermaltake cooler/fan!) 512MB RAM (one DDR400 module; max RAM is 3GB) 80GB Disk (currently has XP-Pro SP2 installed) Radeon 9250 AGP 8X graphics 40X CDROM Keyboard, mouse and power cable. Motherboard has has a new CMOS battery for maximum life. Free VGA cable if required. 125 UKP + shipping
Ideal as a general system, and the CPU easily outperforms a stock 3200+ Barton. I think the CPU might be a mobile variant though, as it only has 64K L2 (even though the sticker on the CPU does say AthlonXP), but it still does very well in tests, probably because of the higher clock speed compared to a standard Barton - the CPU is attached via Artic Silver 5 for maximum cooling efficiency.
The case is that of a Viglen CX1 Workstation (so plenty of room for expansion), which was originally a dual-PIII/800 system used by my brother for his academic studies, then later upgraded to the ASUS motherboard, etc. I still have the dual-PIII board aswell if required.
Shipping costs:
UK and Channel Islands: 25 UKP Ireland: 27 UKP Belgium/Luxembourg/Netherlands: 25 UKP Denmark/France/Germany: 25 UKP Italy/Spain/Portugal: 35 UKP Rest of Europe (except Greece): 45 UKP Greece, Portugal, Sardinia & Sicily, Italy & Spain: 35 UKP Austria: 35 UKP Czech Republic, Estonia, Finland, Hungary, Latvia, Lithuania, Poland: 40 UKP Gibraltar, Liechtenstein, Malta, Norway, San Merino & Switzerland: 45 UKP Turkey: 70 UKP Rest of World: email me for a quote.
Note that this system will run a modern AGP gfx card just fine, eg. I used it for a while with an X1950 Pro AGP, and thus it should also work ok with the newer HD2600 AGP. Extra RAM is available cheaply on eBay.