Great links guys! This is one my brother sent me.
http://www.fengzhudesign.com/
He does digitally how I do the old fashioned way. He also goes backwards from the majority of what I have heard and uses only a couple of layers, but he also shows how to use the wakum tablet. Here is a link to a teacher I had while at the Columbus College of Art & Design (although he hasn't had time to go digital either.).
http://www.jdorr.com/
Again, thanks for the great links.