How do I automate a backup of new MobileMe calendar data The new MobileMe iCal data lives in the cloud, and the data on your computer is actually a cache. This support article from Apple explains how to backup calendar data by exporting to an .ics file. I would like to automate that process via AppleScript, Automator or any other method (paid software is fine). 

The sticking point with AppleScript is selecting the calendar on the left hand column. In Automator I don't think the available actions support this level of automation.
Automator does support selecting a Calendar. Using the Filter or Find actions, you can Find (Calendar) Where: and then (Title) (Contains): ____