I have two Windows 7 laptops on my WiFi network. Each has approx. 500GB of data (primarily photos, songs and Word/PDF files). I also have an old desktop computer (2GHz, 2GB RAM, 1.5TB drive, network card) running Windows XP Home.
I'd like to setup a fool-proof backup solution that:
1) creates a mirror image of all my files on each Win 7 laptop (one for each laptop with a browsable file tree structure mirroring the source drive), 2) every night, updates backup over WiFi by adding/removing any new files, 3) requires minimal maintenance, and 4) is free, or as free as possible, while meeting the criteria above
I have looked at a number of choices but am overwhelmed by the solutions offered by most how-to sites. I am not averse to formatting the desktop and loading a Linux build dedicated to backup management - but I'm looking for simplicity and ease of use in the solution, not bells and whistles that make day to day management a pain (e.g., don't need versioning).