Here is a link to short video showing my excavator running with my control board. I have it programmed so when all sticks are neutral hydraulic pumo will switch off after 2 seconds. Hope you find it useful. If you want further details of this board and how to build program one let me know and I'll post otherwise I'll assume it's of no interest.
Cheers
http://www.youtube.com/watch?v=JaDPkz3Z5JA