A couple friends and I would like to plan a Spring Break road trip. We will be starting from Indiana and are thinking we'd like to end up in Illinois, Ohio, or Kentucky- probably at an amusement park. We won't have a huge cash resource, so we'd like to keep it somewhat inexpensive. We're willing to camp along the way and we'd like to stop at some cool places on our journey. Any ideas as to where we should end up and/or where we could stop on the way?