Our parish uses the (now, online/OnDemand) Parish Data System (PDS) software, including all facility and event scheduling.  We are also about to roll out a new Joomla-based website. 

Does anyone have a good method for calendar export from PDS?

The best I've found (with the documentation I've had so far) for exporting from PDS is HTML output.  I'd rather not have to write a script to use that output to create something a bit more portable (e.g. icalendar).