@matt3

I 've copied (backed up) more than 100GB over the network using a combination of NetFS and MirrorCopy under a straight session. You can create some scripts for the latter to even run incremental "back ups" on demand if I recall correctly. Anyhow, I highly recommend this solution.

There are tools/scripts (such MUIWake, MirrorCopy and NetFS) which could be combined under a GUI and have a great back up solution. Hope one could contact the authors and work together closely to create something similar, imho.