I don't remember where I found it but this is a great site for finding cell phone towers near your home or business. Punch in an address and it shows a Google map of results. I have no idea who runs it but it is a cool site.
For example, I didn't know there were this many towers around us:
My daughter lives less than a 1/4 of a mile from a cell tower. She and her husband have 4 small children. They live on 87 Ellen Avenue, Mahopac, New York 10541.
How much power does this tower have? How much danger are they in?