Here is another link from John Bridge, a true tile guru, I wish that he worked in the Minneapolis area.
http://www.johnbridge.com/vbulletin/...723#post103723
You can also check at a local tile shop. They typically hold how to classes (so they can sell more tile).
Here is another link for something to help with getting the correct pitch on the shower floor. It is what I am going to use.
http://www.quick-pitch.com/
Good Luck and let us know how it goes.
Dan