Think i remember these doing the rounds a while back and it came out that they were indeed networkable.
It doesn't explicitly mention this on the detail but notice the free "Ethernet Cable"....
Pretty darn tempting, i notice that there is an ebuyer 500gb drive doing the rounds at the same price, an extra 100gb or LAN capability? the choice is yours :-)
# 7,200rpm and 8MB cache memory
# NTFS formatted forWindows XP/2000
# Supplied with USB 2.0 cable, Ethernet cable, stand,mains adaptor, driver CD and instructions
# Free 3 year manufacturer's warranty
as i'm sure you know these things will go like hotcakes come saturday morning as is the way with lidl stuff.
edit: seems that its not nationwide. they're shown down my neck of the woods in suffolk