It looks like Western Digital hopes to be one of the big names in efficient, portable storage. According to Engadget their new My Book series of portable hard drives will come with a front facing E-Ink display that shows their label, and the amount of free space left on the drive. This way you'll be able to see how much space your drive has at a glance, without wasting power on an inefficient display.

Both the My Book Elite and the My Book Studio offer 256-bit hardware based encryption. Both are available in sizes ranging from 500 GB to 2 TB. The Studio, which is Mac formatted and has FireWire 800, costs between $150 and $300, depending on size. The Elite costs between $170 and $280.

Western Digital also has the My Passport Elite, which has a USB dock, capacity gauge, drive lock indicator, 256-bit encryption, and up to 640 GB of storage (for $170). That's a lot of space to travel around with.