Joe,
Care to expand on your usage?
My CSV file approach seems to be working fine right now, but INI might be more scalable.
Also, Beescript does look great. We however are using the HibnerScript system (I just made that name up) presented by Chris Hibner at last year's World's event.
HibnerScript
His approach is remarkably simply, has a built in simulator and follows a state machine approach that I really believe in....so far all of his material has been rock solid. I'm very excited to implement it.