Unique Indianapolis area wedding spot?

A friend just asked us for suggestions on where to have a wedding for no more than 200 people, preferably indoors, not a church, and that doesn't cost a boatload of cash. Tall order, right? We recommended checking out the following (although we have no idea about the prices) the ACD Museum (it's in Auburn but it is the one place that we wish that we had known about for our wedding- how slick would it be to have your ceremony around all of those great cars?), IMA, Conner Prairie, the Indiana Historical Society, and the BEAUTIFUL Paramount Theatre in Anderson, IN. However, we are putting it out to the blog readers, any thoughts?