Buy.com has Iomega Prestige 500GB USB 2.0 Portable Hard Drive – 34169 - $94.99 + free shipping.
The pocket-sized USB powered Iomega® Portable Hard Drive requires no external power supply – just plug it in and go. And with the Drop Shock™ feature, the Iomega Portable Hard Drive is rugged and flexible enough to safely store large amounts of data in tough travel environments. Included free with your Iomega hard drive purchase, choose either EMC® Retrospect Express or Retrospect Express HD (PC or Mac) for easy file backup (software via download). Also included is free MozyHome Online Backup (2GB online capacity). Available in 500GB capacity
# Easy-to-use - USB 2.0 interface available with no external power supply required
# Compact - Ultra portable, fits easily into a shirt or pocket
# Secure - EMC® Retrospect Express (PC/Mac) software license is included for easy file backup (software via download). Also included is free MozyHome Online Backup (2GB online capacity).
# Rugged - Sturdy aluminum construction; Drop Shock™ technology on all models
Iomega Prestige 500GB USB 2.0 Portable Hard Drive – 34169 - $94.99 FS 
