Great job. You know, I've been meticulously careful with my camera body and lens, and prior to changing a lens, I have everything laid out. Then I turn the body upside down and in a matter of seconds, my lenses are changed. So far, no dust problems, but that nagging thought about CCD cleaning has been bugging me. You made it look so easy. My wife of 25 years laughs her head off when she sees my neurosis as I try to accomplish this task.
Of course, it would be nice that in the near future, cameras are released with some type of CCD cover/plate, etc., that will prevent the sensor from getting dirty or damaged. At least in this way we could clean the cover portion with a wipe, or what have you without the fear and worries about doing so. I figure Nikon should get to this workaround sometime during their D7 model!!!