In addition to the KC Bier Meisters there's some group that meets out by Lake Lotawana, and another that meets somewhere up by Liberty. I don't know anything about these groups, except that they exist.
ZZhops.com for the lake lotawana group.
If you want to participate in some group buys, the guy who runs apexbrewwares.com does a group buy every 3-4 months or so for bulk grains. He's out of Independence near 291 and 35th St.
ha ha, glad to hear the site is on the straight and narrow now! I just posted a thread about this, but figured I could ask here as well. Is there much of a group in the club that does cider brewing? It seems to be the red-headed stepchild of the brewing scene.