http://www.pprc.org/pubs/indpaint/powdercoat.pdf
http://www.btdwoodpowdercoating.com/
I haven't done powdercoating but it sounds interesting. I relate it to motorcycles and can't visualize exactly how it would look with wood because we are used to various stains and such. This seems like it would be like painting wood and doesn't seem appealing, but who knows..