Guys, I could really use your input on this issue. I will be teaching 9th grade Biology at a huge, suburban high school in Los Angeles County. Needless to say, theft is a major issue on this campus. (By "theft" I mean classroom break-ins, usually professional, and usually occuring over long weekends and holidays. Projectors, computers, and cameras are targeted.) The cash-strapped school said that it would likely be several months before they could provide me with a LCD/DLP projector, so I bought my own (refurbished). My plan is not to mount the projector to the ceiling, but rather to lock it to a cart during the day, and take it home with me every night. I also have a laptop computer, which I'll be taking home at night as well. The classroom has 2 sturdyish cabinets, which I will secure with chains and padlocks. That's where I'll store my personal stuff, labware, calculators, etc. What has your experience with classroom theft been? And what measures do you take to secure your stuff? Thanks for your input!