YouTube - Cassiopeia Belly Dance How To - Rocker Shimmy
You can see here that this shimmy isn't knee driven. Checkout the rest of of Cassioeia's stuff on YouTube, including 4 more demos of this shimmy with variations. She's the only YouTube instructor who's always worth watching and the only one that I would pay to get a dvd of her YiouTube stuff
Wher has the YouTube icon gone? I had to insert that vid by hand (writing in code)