Finally broke down and bought a 27-inch refurb iMac. Up until now, all of my machines are backed up redundantly...a local backup via CCC that gets rotated offsite every two weeks and cloud backup via CrashPlan. My plan with the new machine is to offload my Aperture library to an external drive...probably Thunderbolt. Eventually, the backups are going to get so large that they won't fit on a single hard drive and I'm not keen on schlepping a two disk RAID enclosure back and forth every two weeks for security.
What's everyone here doing? Any personal experiences with external Thunderbolt hard drives? (Thunderbolt SSD is out...just too expensive for the size of my photo library.)