I am trying to decide right now if I should purchase a DLP projector and here are my ideas....

Since this is for permanent installations you don't have to worry about making it light weight.

Build the unit in two pieces. The projector, a small box that will hang from the ceiling or require minimal table space. A "control" box that handles the different inputs, processing, power supplies. Connect the two digitally so high quality cables are not an issue.

Please no hokey remote control and no 5 watt speaker. This isn't for power point presentations....

Choose a lamp that is affordable to replace.

Since InFocus has new DLP projectors in the $4,000 price range I expect that you can beat this price!