I am thinking of building a new computer and right now on my current setup I just have all my documents (photos and stuff I dont want to lose) on my C drive along with everything else. I just run a backup of those files every couple days to an external hard drive. On the new setup, I was thinking of just having 2 internal drives (maybe do an external later if i want to take stuff with me) and running the backup to the 2nd drive. Or am I better off just having a RAID 1 setup then not having to worry about backing up since it will mirror itself?