Don, please read Rule #2 in
http://forums.prosoundweb.com/index.php/topic,99.0.html, it's probably best to contact them directly or via PM.
Jacob, I'm assuming the $10,000 budget is intended to cover the actual products and installation as well as design, but just to clarify, is the goal for that budget to be for the entire system overhaul you mentioned or just for the speaker system?
Being where you are, not only 40 miles north of Cincinnati and 15 miles south of Dayton as you noted but also 100 miles or so from Columbus and Indianapolis, there should be a number of potential of vendors. You might talk to other churches in the area and see if they have any recommendations. And if you have any Architects, General Contractors, Electrical Engineers or Contractors, etc. in your congregation, they may also have some recommendations or input.