It's still not all that easy to track down a 2TB portable drive. Thankfully, Toshiba is making that extra-large capacity more ubiquitous by shipping an upgrade to its Canvio line of USB 3.0 disks. Both the no-frills Canvio Basics 3.0 and a Canvio Special Edition with a backup software bundle now carry 2TB inside, up from 1.5TB half a year ago. Not satisfi
