I have in the past shot/edited a fitness dvd - we used a shotgun mic hung down or pointed using a mic stand. I may be doing a dance class recording (pos turned into dvd). Obviously the dancers would want to dance to the music during whilst talking. Im not sure exactly on mic set up / how to do it. perhaps: Shotgun mic - as the fitness dvd, except the music in the room is kept low - the music track is added in post - by overlaying the original music track with the camera sound, would the speech still be ok? perhaps some reverb added. Wireless lapel mics - what would work best using a Z1 or 7D (which would have the mics att. to a zoom h4n if i did use a 7d) - What wireless mics would be recommended - seinheiser? Or safe bet would be for them to demo the moves slowly then when they dance to the music, they dont talk (could have graphically aids instead even). EDIT - what mic is used in this video http://www.youtube.com/watch?v=bXRf_SuZND0 the lapel mic is on her right breast - sounds like theve recorded the music on set rather than in post? the lapel mic - theres no cable to a transmitter (not that i can see - perhaps some poor chap had to wire it around her right breast?) is that it? just a small lapel mic with the transmitter built in - perhaps they added the music in post which left some of the set audio?