Scott of eboy fame now has a web store. It is from China, so shipping is annoying, but the way it works is a big lump sum followed by little margins. I usually buy at least 10 cakes when ordering from Scott. ;
http://www.yunnansourcing.com/store/
I'm not a big fan of the quality of puerhshop, but YMMV.
P.S. cooked is a lot like drinking dirt IMHO.