The shelf should work but remember you need to have clearance around the back of the projector for airflow. I think the manual requires about 19 inches. Mine is ceiling mounted about 13.5 feet from the screen about just under 7 feet off the ground. If you do the ceiling mount you can use some plastic wiremold (or a similar product) to hide the wires, it can be painted the wall/ceiling color and blends in pretty well.
1/30/10 at 6:18pm