I have seen those projectors everywhere around town these days in my travels and hanging outings. And from what I see, they are usually to be found in night clubs, hanging out on the ceilings projecting some sort of movie or art slide show onto the walls. And those digital video and home theater projectors can be used for workshops, business presentations, classrooms and everything projectable, as they have come a long way from the slide projector.  And if you could use a projector bulb, PresentationMart.com has them. They also offer LCD and DLP business projectors, replacement lamps, projector cases, projector mounts and more. At PresentationMart.com you can save yourself a trip of running around town everywhere trying to find any projector accessories you may need. They are the place for you and your projector.