$25 Computer? Yes, please!
Ok, it’s hard to see this one as a full on computer, but apparently it really is that (kind of). The Raspberry Pi, shipping with a 700MHz processor, 128MB of RAM and a USB port, is a bare-bones PC actually able to connect to a monitor and surf the web! The best part is that it runs Ubuntu 9, and should be available in the near future for purchase of ~$25 or ~£15. Not bad, eh? Of course, it can’t handle next-gen games and such, but it can handle a few processes which could help you and especially for just £15!
Picture: Raspberry Pi Homepage