This post is relatively short ;). Any easy software out there to create diagrams describing FSMs?

Windows Paint... all you need are circles/boxes and lines!

Any UML tool will have pretty state machine templates

Yup, I second the UML tool suggestion.

You might even find some usefull tools there.

Hope this helps

Eric

FSM Visual Studio 2005 An application I wrote some time ago(About a year) in VB.NET. I am currently working on a better version that should (in theory) support an infinite number of diagrams through a java plugin system, but it won't be finished this year :(
The application have some drawing problem(no double-buffering) and can't export to images, but with the source aviable it should be easy to add.

google(violet) for a lightweight java uml-system that supports png export.

I'm pretty sure MS Visio would have some tool for FSM Diagrams... of course this program has its price

Edo