I just thought I'd give a shout out to Bruno Saille, one of our Senior Systems Engineers in France, who developed the "Opalis VSD Generator". Since I saw the first version of this tool just over a week ago, Bruno has made a LOT of improvements to it. It's really not fair to call it the "VSD Generator" anymore since it now also exports Word docs. It's really cool and can really save you a lot of time if you're needing to document your workflows.
It's really simple to use, with a quick configuration dialog:
…and a simple tree view:
…and one click to quickly generate a Visio diagram: