You may or may not have noticed, but Western Digital just followed up on Seagate's earlier efforts by breaking out a 3TB external drive of its own -- one that has just a single HDD within. The newest My Book Essential not only houses a 3TB drive, but also packs a USB 3.0 port on the rear and the same rounded black shell that you've come to know and love / hate. If that's far too much for you to swallow (or simply too large to haul around), the My Passport Essential and My Passport Essential SE lines are also being bu
