I'm here in Indy as well... Fishers actually. I'm also rather disappointed in the lack of racing opportunities around here.
I've heard of an off-road venue (outdoors) in the Pendleton Pike/Post Rd area that folks get together on Wednesdays & Saturdays at. That's all I know.
Otherwise, as far as touring car venues, nothing but a nice track in the Cincinnati area (with annual membership @ $100)... which is a littel unrealistic for my situation. My old Lady would shoot me in the face if i drove back & forth as often as I'd like.
Anyone out there thought about building an ad-hoc racetrack in a parking lot? Not sure what this would entail (some form of boundary in the corners)... just a thought.