Brian,
I'm a member of the Hoosier Model Car Association (HMCA) based in Indy. We meet twice a month, 2nd and 4th Mondays. We get together at a different members house each each time. I live in Shelburn, south of Terre Haute, that's around an hour and a half drive, but it's worth it, we have a good time.
We have our 34th annual contest coming up on Saturday, May 3rd. It's at the Knights of Columbus hall, at 511 E Thompson Rd, just off I-465 and US 31.
You ought to come out and bring some models, browse though the huge swap meet and visit with all the fellow modelers. You can meet some of the HMCA guys too.
It's always a good show!