What are good places for homecoming dresses/shoes?

I am an incoming freshman of high school, and home coming is the first dance of the year. Like any other average teenage girl, I am VERY excited for this. Around my school many people know me for my style, not having many of the same clothes as others, which is something I strive to do. I live in northwest Indiana, and we don't have many places around here that sell nice, unique dresses. I am avoiding things like Jcpenny's & Macy's just because I know that's where a LOT of girls are going to be getting their dresses from. I naturally almost black hair, and tan, dark skin. I'm asking you guys if you know any places in northwest Indiana or online that don't have too ridiculously expensive dresses. Also, if you can, will you recommend a place that sells nice shoes? If I get a simple dress, I was wanting do something like maybe cheetah print shoes?! Maybe, yes, no? Your guys' opinions mean the world to me! Please, and thank you! :D