Doing some research on network projectors, and started here for a good read on the current capablities of certain projectors…
http://www.projectorpeople.com/resources/projector-networking.asp
Last year, we got a few of these and put them up standalone, but looks like they have network capability as well! Sweet!
Those short throw 3M’s like above are really nice, as you can just everything right on the wall, and it can project onto anything. No need to go through ceiling tile and all that jazz. Also, largers speakers are built right in. For networking, one of the most useful things for us would be scheduling of time on/off and alerts when the lamps go out.
Here is a whole list of network projectors…
http://www.projectorpeople.com/projectors/network-projectors.asp