Forgot to schedule this in 2014, so here it finally is, as the content is still relevant:
A long time ago (almost 10 years) I did some stuff with State Machines in .NET.
Since then the world has changed, and a lot more libraries have become available.
As I mainly use .NET and Delphi and there is a reasonable chance I need to do some more state machine work, here are some links about State Machines in both environments.