Toshiba rolled out a USB 2.0 Portable External Hard Drive with a capacity of 500GB. It features NTI Shadow real-time backup software and should be available soon for around $180.
Hassle-free, simple and easy, Toshiba's external hard drives are the solution to your backup needs. The included NTI Shadow backup software eliminates the need to push a button or click an icon to activate a backup. Plug in the drive, load the software and you'll have peace of mind in knowing that all of your important digital photos, music, movies and documents are backed up, protected and portable. The software runs in the background capturing updates to files and automatically saving them to the external drive.