iOmega iConnect
This is exactly the same as the iConnect, that's been out for a few years and can be picked up for £40.
iConnect is worth every penny in my opinion for streaming HD to multiple sources, backup scheduling and other gubbins. Although apparently printer sharing is a pain, but never used that (who needs a printer nowadays anyway, it's actually cheaper to distribute iPads instead of using paper, what with the high price of ink and printer running costs*).
*may be a slight exaggeration. Is cheaper to hand out Kindles though.