I wrote this program to take advantage of all its inputs and outputs.
If you decide to run this program, make sure you have the controller connected up through ethernet, and that you get ethernet response over mcHelper.
the program and source are available at http://www.makingthings.com/Members/tunell.
The microcontroller costs about $110 and is AWESOME. I've been using it in a lot of my projects, and it's great! Don' t know how I ever survived without it.