There is a monthly Vintage event at Game Time, 8244 Center Run Rd. Indianapolis, IN. at 1pm EST, unlimited proxy. Any questions call (317) 577 - 0900. These events are the last Saturday of every month apparently.
I forgot to ask about price & prize support but according to a thread from a few months ago, it was $15 with a dual to 1st place if there are at least 8 people. I don't know if that's still the case, but you can call for details if you need them.
I've never actually been there so I don't know anything about the venue but I'm looking forward to playing some Vintage for the first time since NA Champs last year.