If you use a PC but have been envious of those Apple users that have been able to take advantage of Time Machine backup, you're now in luck. Seagate is offering the Replica, which offers Time Machine-like storage for PCs.
The Replica makes it so you can restore documents, applications and various other items should your PC ever crash. It works in a continuous backup fashion, so you don't have to manually back up your data--though you can if you want.
You can also use it to restore individual files that you may have deleted by mistake. It works with Windows XP or Vista and comes in 250GB and 500GB versions that will retail for $129.99 and $199.99, respectively. The latter of which is intended for multi-PC back up and includes a dock. Both will be available in May.