my neighbor bought a d50 kit a few weeks ago, for no other reason than taking pictures of a kid's birthday, but has since lost interest in owning the camera(and has bought a point and shoot) but, being that the guy is filthy rich, 450 later, i now have a d50 along with my lovely e-500. needless to say, im pretty flippin happy! i have a couple questions though, how long is the battery life on this thing? ive never had a problem with my e-500, but im going to be taking pictures at a big paintball tournament soon, and im wondering if i should bring both cameras(the con, being having to drag more along with me)? and second, do any companies manufacture a vertical grip for the d50??