After my slight disaster of losing a backup drive (that foolishly I wasn't actually using "as" a backup). I need advice regarding modern external drives....I presume you can get SSD external drives now, but cost per gb will still be more than an old HDD. But should be more durable (will mainly be writing once and reading more often). Or would it be better to just buy flash drives, although I'm thinking of doing that as well so I'll have data backed up twice. Any recommendations on what to look for?