Just been to Staples at Greenbridge in Swindon to pick up a Hard Drive and took a WD My Passport Ultra 2tb Hard Drive off the shelf. It stated £74.99 on line and on the shelf ticket, but actually went through the till at £59.99 so this looks like an In Store only deal. This link on this tread takes you to the online deal for the specs, and which is showing at the more expensive price.
Being the Ultra model this seems to have automatic backup software and 256-bit AES hardware encryption and is USB3. Available in Black, White, Blue and a Reddish colour from what was on the shelf and there were quite a few left.
My first deal, so hope I've submitted it right 8)
Not sure if this is nationwide, but may help someone to back up their new Xmas present ;)