Been keeping an eye on this USB powered hard drive for a while instore @ tesco it was stuck at £35 - but they are dropping prices on USB 2.0 HDD's recently as USB 3 is coming in rapidly - their only good if you have other USB 3 Hardware !!
So today it was just under £29 - which suits me fine as It is a pretty small little box great for mobile use - holidays etc inconjunction with the WDTV box.
Best Feature : USB powered - no need for its own power supply.
From previous searches there's a good chance this pricedrop is more than a local deal.