This is one seriously bright and long-lasting projector, and it's all about easy maintenance.
Data projectors reviews
If you're after something to power portable presentations, the Optoma ML550 is an expensive but worthwhile option.
An entry-level DLP installation projector aimed at conferences and classrooms, NEC's PE401H is thoroughly professional - if a tad old-fashioned.
Selling at a mere £409.99 or less online, Epson's EB-X11 is an attempt to please everyone in a compact, highly capable package.