You've been given some great tips and advice on certain areas. We moved from the south burbs of Chicago to southern WI a year ago. DH asked co-workers to give him input on different areas. Your husband might want to give that a try. If you have kids, you can use greatschools . net to get an idea about school districts, although keep in mind it is just a guideline and you can't put all your stock in test scores. You're definitely going to get more for your money in Indiana, but a lot of that area is spotty and you just need to do your research and be selective.
A very good friend of mine lives down near St. Louis (Alton) and the cost of living is so, so, SO much cheaper down there. If you truly only have $650 to budget for a living space, your husband might want to re-think whether this is a good job move for him. Salaries are definitely much higher up here than in the St. Louis area, and your husband probably needs to be compensated properly for the move. Most everything will cost more up here--rent, utilities, groceries. There's far more traffic so he will spend more on gas, etc. etc. All things to think about when evaluating a move.