I have a Leaf River that when it still worked properly (no flash anymore) it would get 2-3000 pics on a set of batteries and last a good 3 months. I loved that camera when it worked, but unfortunately it really isn't too reliable anymore unless it's sitting over a pile of corn.

I have the new Moultrie D-40 as well that will take a good 500+ pics and last about 6 weeks on batteries. The trigger speed is pretty good on the Moultrie as well, I'd like to get a few more of these.