Hi-Speed 6 port USB 2.0 and Firewire hub designed specifically for the Mac Mini - low profile stackable design sits under the Mac Mini to save space. Adds 4 USB and 2 FireWire ports to Mac mini. Can be used with any Mac though - or PC!
Great piece of kit - have had two for ages. No power supply needed, but will allow iPod charging through it even if the Mac is shut down.
The USB only version has been posted a couple of times before - this is still available for £5.99 (before postage). Bought one of these tonight as they haven't got the Firewire version instore yet (London).
More info here: http://www.123macmini.com/accessories/reviews/110.html