I'm not a seagate fan, but a 1TB External HDD for £41.99 is a bit of a bargain.
Scroll right down to the 'External Hard Drives' section on the today only page, and add directly to basket from there.
As always, free delivery when signed up to AVForums/Hexus.
There's also a 1.5TB Samsung external HDD for £59.99, so even cheaper per GB for those wanting a little more space.
And a 2TB Buffalo external HDD for £65.99.
Really good day for HDD's at Scan :-O