🚀 go-pugleaf

We have a problem at our school involving the Mac SE recently purchased
for public cluster use.  They all have hard disks, which is quite good
and well, except for the fact that everyone loves to PLAY with these
hard disks...
 
A) They dump non-supported software on them
B) They alter system files (changing sounds, startup screens)
C) Programs are thrown off the disk that should be left on for student use
 
and so forth...
 
Each week, the hard disks are cleaned, taking up a great deal of time
(we have 46 of them now... possibly triple that number in the future)
and effort.
 
What I'm looking for are suggestions on how to
 
1) Keep users from messing up the hard disks, while still allowing them
   to access the programs and system files without trouble
 
2) An easy way to restore the disks that takes less time (for instance,
   a way to use the Appletalk network to simultaneously clean up all
   the hard disks.)
 
I had suggested using the PROTECT bit, as a nice means of preventing
the system and software files from being trashed and from being illegally
copied, but sources say Apple is discouraging use of this bit (just when
we had SOMETHING that worked!)
 
Any ideas?  Any commercial software?  Hardware?
 
- ERIC -             * Another proud CoCo 3 user *        ______________
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