As advertised on TV, this hard-drive can be accessed from anywhere in the world so long as it's connected to your router.
Nearest price I can see is more than £190.
From the PC World site:
Centralised storage for your home network. A surprisingly simple & secure way to access your data anytime. At home, in the office, anywhere in the world - even if your local computer is turned off External Network Hard Drive
- 1TB Storage Capacity
- Store and Share your music and movies
- View photo's across your shared network
- Designed for home users and small office
Centralised storage for your home network. Add this network hard drive to your wired or wireless network for a surprisingly simple and secure way to access your data anywhere, anytime. At home, in the office, and anywhere in the world - even when your local computer is turned off.
- Backup Software - Easy-to-use software allows you to back up multiple PCs to one location.
- Data OnHand - Use Windows Explorer on any PC to find, open, edit and save files. Its like having your files with you wherever you are.
- WD Anywhere Access - The files on this drive are always accessible when you need them, even when your local computer is turned off.
- Capacity gauge - See at a glance how much space is available on your storage system.
- Add additional external storage - Plug in an external USB drive to the port on the back of the drive for added capacity.
Stores: over 833,000 Photos or 1535 Movies or up to 250,000 MP3 files