ps here is a video I uploaded a couple of months ago showing Jupiter in good seeing from my place. Youtube seems to have downgraded the video quality a bit, but you'll get the idea. The video is 3 minutes - 1 minute of red,1 minute of green, and 1 minute of blue. Recorded at about 50fps.
The lateral motion is the scope moving around in the slight breeze, Jupiter itself was not moving at all.
If you can afford the bandwidth, hit the HQ mode link.
http://www.youtube.com/watch?v=sC77uNY8Cfo
cheers, Bird