I would just say ... good luck trying to go through the LUKS locked BackTrack USB key I have and when I pull my Macbook's HDD then deltatux
Truecrypt is good, I used it a couple of times. Avoid Sophos enterprise encryption. National health service I work for is now got to encrypt all portable devices, Due to clumsy professionals leaking patients details and medical records. If US officals get access to patient details without NHS content the person that owns the laptop gets a whopping £50,000 fine.
Yup, TrueCrypt is pretty good, I use LUKS (part of Linux) to lock my USB key so in order to boot it, I must supply it a password during its boot sequence. deltatux
8gb to 32gb depending on the model. i got one 16gb and four 8gb ones, they're too cool eraser kingston flashdrive + usb KEY the eraser turns into Mr. flashdrive man.. he's watching you bend for the soap lol the Lacie Key is pretty fast, 30mb/s, i use one for Readyboost.