Coming to Indianapolis (from SF) for a conference, 3/30-4/1 and looking for alternatives to greasy chain restaurant food. I'm primarily interested in inexpensive or moderate ethnic and regional foods (partial to Mexican, Chinese, Vietnamese, Thai, Burma, N. African), but pretty open to other suggestions. I can afford one nice dinner while there, so any high end suggestions would be appreciated, too. I'll be staying near the convention center. Are there any regional delicacies or styles in Indiana?