A G4 Apple Mac Mini for £279.99 + £5.99 delivery from the BT Shop. With 4% Quidco the price goes down to £268.79.
Although this is not the latest Intel-based version, it was the previous mid-range model with faster processor, larger hard disk and CD-RW/DVD-R combo drive.
Considering the cheapest Mini will now set you back £399, this is a very good price for a Mac base unit.
Note: this is a base unit. No keyboard, mouse, speakers, monitor etc. are supplied.
80GB Ultra ATA hard drive
On board sound
Built-in Firewire + USB2