Walmart has some TASCO game cameras, made by Bushnell. $50. They run off of 4 AA's, and provide good pictures.

Same spot as my first spot.


I just moved this camera to another spot to cover more area.

On areas where you are concerned about trespassers, mounting cameras up high helps a lot. Mine are about 15' up in trees secured to a base that points downward. They are also camouflaged, and concealed under mesh netting.