photojonny

I have a simple plan that I am working on, nothing major. I am very new at all of this stuff and need some help. I need a momentary push switch that has as short of a throw as possible, and also needs to very sensitive. I would like it to be tripped by the weight of 3 or 4 sheets of paper, but that may not be reasonable. I don't know if there is some kind of pressure switch or something that would work better than the "push-button" type that I have been trying. Any ideas or suggestions would be appreciated. (Of course, price IS an object!!) Side note: can anyone tell me how a "Touch-Lamp" works? can that be incorporated into a momentary switch to light up an led?