Wow! What a coincidence! I'm a grad student in Madison.
There's a black hair salon on Willy Street on the corner of Williamson and Patterson, or thereabouts. I don't know the name, but if you walk down Willy Street, you'll see it. They only go by appointments. Don't be freaked out by the pictures of relaxed heads in the windows...they definitely cut natural hair.
My hair was cut by Fon, a male beautician and one of the owners of the salon. He did an excellent job and was not freaked out by my tightly coiled natural hair. He's used to natural hair and has nothing but positive things to say about it. There's also a woman there who cuts natural hair as well.