There is a Product that I believe is called FBI Agent or something like that ,, it is the APP that compaq and other PC manufacturers use when shipping pre-imaged machines,,
Havent looked for it,, but basically you start the machine, make your choice of OS,, and then hit OK,, it does the rest,, asking for the setup cd etc,,
on the lines of a restore,, but totally self automated,,
Just a thought,,,