The Elements USB 2.0 external hard drive is a fast, easy, reliable way to add more storage to your PC or Macintosh. Simply plug it in to a USB port and start saving or backing up your photos, music video and files. It's pre-formatted for immediate use. The compact, durable metal case provides extra data protection.
Free Delivery as standard from Play.com
I realise this gets not great reviews, but it seems an OK price if you need the storage. and Play are pretty reliable for me.
Quidco available, but I think only saves about 50p....