Attached is a small preview from the next version of SuperDuper: a public beta of the new "schedule driver" that contains support for
Growl.
With this, you'll be able to be notified on two events: Scheduled Copy Succeeds and Scheduled Copy Fails. Any normal Growl notification type will work, including across-network and email.
If Growl is not installed, nothing untoward should happen.
A small ZIP of the script is attached to this message. Unzip it, and then place the file inside SuperDuper!'s Resources folder, in the application bundle, replacing the one that's already there.
To get there, control-click on SuperDuper!, and choose "Show Package Contents". Then, navigate to Contents, then Resources, and there you'll find the existing "Copy Job Script.template".
Replace that with this one, and then (this is important) re-create your scheduled copies.
Once the script has run once, you should see SuperDuper in the list of applications available in the Growl preference pane. Select that, and you will see the two notification types.
Let me know what you think!