We're sure there are plenty of uses for external hard drives other than using them as hiding places for pornography. Like, er, as a back up for treasured family photos. 320GB of treasured family photographs. If you have need for a large chunk of external memory and need it safely locked away behind a 128-bit virtual wall (then hidden in the loft or underneath a floorboard until you've got the house to yourself), Lenovo has it covered with its ThinkPad USB Portable Secure Hard Drive - complete with onboard...