Cincinnati also just opened the National Underground Railroad Museum. I plan to visit next time I am in Cinci.
Regarding Skyline chili.....I must tell you, it is definately an aquired taste and after 8 years of being married to a Cinci native who loves his Skyline I have not aquired it. It is NASTY! Sorry AXOjen
The Riverwalk (I think that is what it is called) is a neat area and there are some cute resturants down there. Can't remember any names though.