my birthday coming, so I got new gadget for my toy collection:
http://www.corsair.com/products/padlock2/default.aspx
it is cool, there is no external function needed for the encryption of that, really, the pw can be entered just by the keys on the stick itself. It has an internal goldcap power supply, so one can enter the pw first and then stick it into the computer.
It works there fore on all OS which can read usb stick formated to vfat.
Negative: they don't state speed, so it is 'like a wet sponge' , kind of those cheap multilevel flash chips inside, rater slow compared with many other sticks I have.