Although it may be handy to have your data with you throughout the day, most external hard drives are too encumbering to haul around. Hoping to lighten the burden, Seagate has launched its new The GoFlex Slim is currently available online for $100 and comes with backup and encryption software as well as a three-year warranty. Although it's preloaded with an NTFS driver for Macs, you'll have to reformat the drive to HFS+ to use it with Time Machine. An HFS+ version will hit Apple stores sometime next month.