good point on announcing special requests - it also lets the crowd know that you are open to considering requests - though if i know the crowd, i may suggest that requests be submitted on the front of a $10 bill. some folks actually prefer familiarity to hearing new songs. i don't have a problem with what i consider good songs, but i prefer to minimize the use of stuff i consider "tired". still, it's kinda like performing - just because you've played the same series of songs ad nauseum, you still have to assume it's an entirely different audience the next time. i personally don't use ballroom music discs at all; i select music from various sources, depending on the demographic. a friend and i started a dance hoping to reach a younger demographic, and we looked into using stuff like lady gaga for hustle (summer boy) or samba (bloody mary). unfortunately, we couldn't draw in a younger crowd and the older folks hated it.