Just ordered from this place, they are out of a few of the flavors (Hickory, Apple, Alder), but have the others.
http://www.bigsupplyshop.com/Smokers-and-Accessories_c_146.html (http://www.bigsupplyshop.com/Smokers-and-Accessories_c_146.html)
This might be the best price I've seen yet!