I think is a good price! Couldn't find cheaper than that anywhere else.
I came across this offer, only bank holiday weekend so be quick. Just ordered one!
To get that price you have to use vouchers:
SEAGATE20 gives you 20% off
BANKHOLFREE gives you free delivery
# Plug-and-play - no software to install
# Simply drag-and-drop to save files
# 5,400-RPM performance
# USB powered
# Built-in power management ensures energy-efficient operation