PowerDown will shut down your Mac after
the specified time.  It does this by sending
a 'ShutDown' AppleEvent to the Finder, 
which is exactly the same as when you
choose 'Shut Down' from the Special menu.

You can interrupt the shutdown by moving
the mouse during the warning alert.

Any applications that have unsaved 
documents will pop up their alert box
_behind_ the blacked out screen.

Dan Walkowski
walkowsk@cs.uiuc.edu