The Optoma HD20 is a great 1080p entry level offerring which should make you very happy for years to come. The projector itself, if you are worried about it getting hit, probably should have a cage or box put around it. You can build a box yourself (FULLY VENTED!) or buy a cage from a company like ChiefMfg.com
AV Integrated - Theater, whole house audio, and technology consultation during the build and installation process in the Washington, DC metropolitan area.