Sounds of Zion is another of the bigger distributors. They had an 11 booth space that looked like an "L" with a 6 booth square in the front, then a 5 booth strip down one side.
They used to carry mostly CDs and talks on tape, but they have prints and books and other things now too. I've always liked the way they display their products on that slat board display. It's a very crisp and clean presentation.