Hey polk121! I just opened BIY Homebrew Supply in Marion, IA (literally right next to Cedar Rapids) a couple months ago. Here's the shop's info:
BIY Homebrew Supply
147 Marion Blvd, #C
Marion, IA 52302
and of course on facebook at Facebook.com/BIYHomebrewSupply
Hopefully I'll get to meet you and see you in the shop! Cheers!