stefan, for the kind of thing that U have in mind i think CVS would be a good thing. You could put the source on the CVS in read-only, so that any users that has a BU email adress can look at it, and then u can specify specific people that can write ... if something changes, the next time u do an update on your local computer it will tell you that stuff has changed. If you dont like the change ... fair enuf .. just go back to an earlier revision and delete the other one
CVS is really nifty !