There is a plug-in that works with Windows Media Player. It's called VPedal. I've installed it and it works fine, although there's on little glitch in that it doesn't seem to allow me to keep the video on top of my Word document so I can watch the video as I type. Has anyone solved this problem?
I also use Start Stop at my office, but it has one nasty glitch that drives us all crazy, in that sometimes when you hit the play button it doesn't play, jams, and you have to hit a release (Alt and Up Arrow) to get it going again. Have gotten used to it, but very, VERY annoying!