I recommend you plug in an external hard drive and have the AC backup program direct future backups there. I found a nice RAID solution that would be easy for you. Get the G-Safe below and plug it in, but also get the 3rd backup drive. Once your backup is done, you can swap a drive out and swap in your third drive. Take the drive you pulled out home and put it in a safe for the week. Now you have a secure offsite backup for your important files. You must do this every week, and don't leave it in your car. I suggest encrypting the backup. Now your hard drive will not get filled with multiple backups and you can probably sail along fine.


http://www.amazon.com/gp/product/B002O0KOC8?tag=b004oovihw-20
http://www.amazon.com/2TB-G-safe-Spare-Module-Drive/dp/B002RL8I4K

Chris
Living the Dream in Alaska