That's essentially what I have now, Lazy, although the files are all located on one computer with a bigger drive. What I'm aiming for is to have programs and shortcuts and all that follow people from computer to computer in my house, so that they can sign in to any computer and have everything set up without having to set it up manually each time.
For instance, iTunes tracks what songs it has but the libraries are different between the two machines - I want one library so I can plug the iPods into any machine.
For another instance, my wife has a bunch of bookmarks on computer 1. If she logs onto computer 2, she doesn't have any of them and may have trouble finding the right site.
It's something I've been thinking about for a long time, trying to find the right (cheap) solution.