Does anyone know much about this projector. I have had a setup with a Sharp QA-1750 with an Overhead w/ 4000 Lumens for a while but I wanted to get one of these simple enclosed units doesn anyone know anything about this unit and is it any good. I paid 250 bux for it on ebay its the Proxima Lightbook 20. One good thing is the cost of bulbs is cheap but Im not sure its going to be bright enough to display on my wall.