A couple of years ago, we (here in Ottawa) outfit each of our schools with a "media cart" -essentially a high end PC on a cart with a projector. For a few schools, it was their first projector. The project was very successful, and we are considering a "round 2" of this again this year. One of the issues we face with the current carts is their size/weight, so we are looking at a smaller solution (something like the image below).
Does anyone have any experience with a good cart/projector combination that is working well for you???