Greetings,
May I suggest one way of keeping important files? I have an external hard drive that I have my photo's and genealogy programs on.
The external is a Maxtor, and is set to do an automatic backup of the main computer once a week. (can be set do so more often if one likes)
If for any reason I want security, such as when I am away from home for any extended periods, I just unplug the hard drive and store it away in a fire resistant safe. It also can be moved from one computer to another.
Just a thought, regards Ian.