I found this gem, SafeHouse explorer will password protect and encrypt your USB Drive without amin rights.

This is great because you can use it on any computer thus, you can access your documents anywhere on any computer.

Check it out at:
http://www.safehousesoftware.com/SafeHouseExplorer.aspx

It's 100% free and I've been using it for a long time. Uses 256 Blowfish encryption.

Vidimo Se!