This gadget is small hard disk based media player (BYOD - buy your own disk). No networl interface unfortunately, but USB 2.0 probably sufficient for most non-network crazy users.
This device is sold as Newlink (God knows who's the real manufacturer) and spec is as follows:
Internal HDD Intreface: IDE
Size of HDD: 3.5"
External Interface: 1 x USB 2.0/1.1
Delivery is 7 quid but if you were lucky to get i29 deal (or you are active Hexus member, then it is free (that's why I didn't include it in the price).