I was in a CompUSA recently and saw a keyboard that appeared to have a video editing "jog" control knob built in. I didn't have time to look at it in more detail, and I can't find it on the CompUSA website or anywhere else for that matter. That CompUSA is sorta out of my way, so I haven't been back to look for it again. Anyone seen a keyboard such as this? A link would be great.