Ksig, I agree with you and have always believed that above all, free speech must be preserved...having to be exposed to the opinions and views of bigots and idiots is a worthy price to pay for what so many other cultures don't really have, at least to the extent that we do. However, I think that in this specific case, the University should be able to control what happens on it's own property. Their own right to free speech and the welfare of their student body outweights the rights of these "people" (for lack of a harsher and more honest term).
Also, sometimes I wonder, ARE there limits? Correct me if I'm wrong, but I believe the Supreme Court once had a case in which they ruled that free speech does not include things that are outrageously harmful, i.e. "yelling 'fire!' in a crowded theater", (which is I think a quote from that instance). Also, fundamentally what all Americans are quaranteed above all else are "life, liberty, and the pursuit of happiness." Do you think that maybe in order to find the balance between these three inalienable rights, the unlimited power of one cannot outweigh the other two? I'm not challenging anyone, I really am asking, I don't know myself what I think, entirely.