In both cases, it's more than just pushing buttons. It takes sharp sensibilities to rock a crowd. Trust me: Speaking as someone whose killed (and killed!) his share of dancefloors, it's not as easy as it looks. Judging from the stream of vitriolic comments on our recent Peter Black post, though, plenty of people clearly feel otherwise. Thus, today's Hot Topic: DJs - love them or loathe them? Why? Feel free to weigh in below. In the meantime, speaking of DJs, here's this (courtesy of our pal Numero Tres).