Thanks for the reply. My system specs are in my dropdown in the post and everything is up to date.
Off-site backup is the only kind of backup associated with any other location/computer other than this desktop.
Networking setup is just this desktop on my home wireless network.
C:/ drive is my main working drive and D:/ drive is where I want it to back up to or mirror to. Around 50-60GB here. I'd like it to back up fairly often but could really go once weekly here.
E:/ drive is my 1TB internal that I want to back up to at least one external. This will be all my client files. As the year goes on it'll get filled up, but per wedding I add roughly 40 GB and need this to back up nightly as I'm often working on client files daily and need it to stay current always. At the end of the year I want to archive the external drive, reformat the internal drive, and start all over again.