Anyone using Omondo (http://www.omondo.com)? I starting looking at because it is an Eclipse plugin and there is a free version, but it seems a little clunky. I've noticed that the diagrams will show that you have a problem in your source, but once you've fixed the problem in the source the diagram does not always update and still shows the problem.
Any other suggestions for good free UML tools? A plugin to Eclipse would certainly be a plus. I've used the Together Eclipse plugin from Borland, but our license has expired and it looks like my company has decided not to renew it.