This pretty little thang you see is the latest USB key from I-O Data. The "Totebag" is a bit different from normal USB drives though, because aside from storing either 256MB, 512MB, or 1GB of your personal data, it also will lock up your PC when removed so no one can use it. Just install the software included and your literally have a USB "key". It's been done before, but this one looks very pretty, so there's your added bonus. No word yet on whether or not you'll be able to use the locking feature with your Mac. The 256MB model will run ya $30, the 512MB model $50, and $95 for the 1GB version. Available now.
USB Key and PC Lock [Akihabara]