Business process modeling tools

A recent discussion on the IAI list got onto the subject of business process modeling, and the frustrations some folks have had with Rational Rose.
Two recommendations for current tools were Processworks from Wizdom (uses the IDEF model), and IBM’s free Task Modeler (an Eclipse-based tool for modelling the user experience, (and for making DITA maps).
For more info on DITA (Darwin Information Typing Architecture) see DITA markup, DITA map structure, and an IBM DeveloperWorks article on Design patterns for information architecture with DITA map domains.