WhiteCoKlate, you might also want to take a look at the December issue of Ebony magazine. There is an article on this very subject, complete with pictures for your viewing pleasure!
My advice, don't let the attitudes of a few discourage you from your goal. This is not just about Greek life, this is about life in general. If you allow yourself to be turned away before you even try, you have given other people power and control over your life. If you want it, go get it. Good luck!