First off, i know there are cheaper with buffalo/hitachi etc. However for quality i think western digital has the edge. (ive had a 500gb for some time now). Also buying for tesco, i believe this will give you more confidence in returns if need be, also theres the bonus of extra points!! This is the newer model (i believe)
This Western Digital elements 1TB desktop hard drive comes complete with a 3.5" hard drive that is compact and durable for extra data protection. It is simple to use with a USB 2.0 connection suitable for PC or Mac. An installation guide, USB cable and AC adapter are included.
Free delivery to store for collection, or £5 for delivery to your home
With the current offer at tescos to multiply your points by 4x, this can enable you to get £20 worth of vouchers (with some change)http://www.tesco.com/clubcard/deals/p.aspx?id=howtoorder
You will need a tesco card to take full advantage.