A while back, I thought I remembered seeing a Mac OS X client for PostgreSQL which had a feature where it would display a graphic schema of whatever database you connect to but I can't seem to find it again (web searching.) I did come across one post which said that this was a planned feature for pgAdmin. I need to do a formal schema of a database which I have in development and it would be nice to have an automated tool, whether it connects to the database or uses SQL table definition code to generate graphics. Is there such a thing? if not, what do you all use? OpenOffice Draw? OmniGraffle?