I had a look on sourceforge (http://sourceforge.net/
)for a workflow tool and found Open Business Engine. Looks like it has a design tool and all of my other requirements. http://sourceforge.net/projects/obe/. I’m enjoying writing my own very primitive engine though.
My next fun thing is trying to make stateful portlets, I just can’t wait.
Going for a paddle on the River Lune this weekend, should be good.