This USB storage device provided by Lexar is one of the best when comparing price and features. It uses the famous E Ink technology to display the actual capacity so you can see how much space is left on the drive, and to make it more accurate it has 10 bars each one representing 20% of the total size, pretty cool.

For security measures, the Secure II Dashboard is the software that comes with the Jumpdrive mercury, one of the features I like the most is shredding files to make sure they aren't recoverable, but there are other notable ones like encrypting modes.

The 1GB version only costs $50, for the 2GB you'll have to pay $80 - really low prices. EverythingUSB has a detailed review on this one.

Via PopGadget