We had a FLIR camera at my former agency that got a lot of use. It worked really well if you knew how to use all the features.
Really impressed me the first time that I played with it. I took it to the darkest place I could find at the office (the bathroom with lights off). Its so sensitive that you can could actually see your own IR reflection if you pointed it at the toilet stall door or wall. Pretty cool stuff...
We got our for free off a grant. Keep your ears and eyes open for those opportunities, they are still out there, but much more rare than they used to be.
I long to accomplish a great and noble tasks, but it is my chief duty to accomplish humble tasks as though they were great and noble. The world is moved along, not only by the mighty shoves of its heroes, but also by the aggregate of the tiny pushes of each honest worker.