[LAU] System Restore...

Hiya! So while Dave warmed up the crowd on the M$ related questions... ...and at the risk of being stoned in the Linux public square, is there *any* form of the System Restore function that follws the model of the ~other~ OS? One of my former direct reports, a wiz kid sys admin in the Bay area all ready gave me the standard smart a$$ response; (Er, yeah! It's called a "RE-INSTALL" ...lemme spall it for yah again!! ha ha ha ha) So after I got up off the floor from gut level laughter.. (NOT!), I continue to believe that for nooby converts, and maintaining it's customization ability via the Linux model, would be a very useful tool!!! I have spent many hours recently setting up a custom audio distro that will be remastered and available as a live CD. I'm no Linux sys admin...I figure stuff out any way I can, take longer than most to get it just how I like it....and then I say..hmm, just one more thing I'd like to change....and I bjork the window manager or some such thing. To re-install at that point kills MANY hours of fruitfull work and I'm old enough that I don't need cliche lessons! :) Thoughts? Oh, please choose smooth edged stones under 16oz in weight! Russell