I also used a swivel from Lee Valley Tools (
http://www.leevalley.com/home.aspx - an amazing place for tools). It works, but with our set up you do have to be careful that you slide the table all the way in before rotating or it could hit the window. I also put a screw in to hold it locked in place while traveling.
On edit:"B" is the swivel I used:
http://www.leevalley.com/hardware/pa...,44013&p=44014