Lenovo's ThinkPad USB Portable Secure Hard Drive offers an excellent combination of simple-to-use design and advanced levels of security. Sadly it's only available with a USB 2.0 connection and a maximum capacity of 320GB, but if your priority is protecting your important documents on the move, it's a good choice. Sure you can use software encryption systems such as Vista's Bitlocker, or third-party products such as Deslock, but these generally require a correspondingly high level of configuration. Lenovo's ThinkPad USB Portable Secure Hard Drive on the other hand requires no special drivers or software to work with either Windows XP or Vista. Highly recommended if your pockets are deep, you're cool with USB 2.0 only, and you don't mind the boring corporate design.