Because we were discussing and breaking down zaar movements in class last week, I recommend this clip which has some good narration and description from the Maryland based serpentine.org. There is footage of a traditional zaar ritual, cabaret zaar movement, and a US styled ritual interpretation. http://www.youtube.com/watch?v=2KJFlDtT70c
Also, please look at the contextual information provided by Mazaher, a Zaar troupe in Egypt (pictured above) I was fortunate to see a few times in 2007 . http://www.egyptmusic.org/mazaher.html Finally, though the entry itself is a little flimsy, Wikipedia has good cross-listings for deeper research not available online. Look under "zaar" if this link doesn't take you there.