The latest victim in Gizmodo's "What's in Your Gadget Bag?" feature is Glenn Fleishman, who comes clean about a truly astonishing amount of crap that he lugs around with him in his electronics kit, described with the loving verbosity of a real geek.
The camera used to take this picture is a Canon S1 IS, a 3-megapixel device that has a 10x optical zoom, interchangeable lenses, and uses four AA batteries. Using 2200 milliamphere hour (mAh) batteries recently, I took 500 photos and movies over the course of a month before swapping out another set and recharging. The camera does 640 by 480, 30 frame per second mono-audio video up to the size of the memory card on top of its anti-jitter-motor photos.
Finally, I always carry a 12-foot extension cord with multiple plugs on the end, and the alternative two-prong adapter for my Apple power supply. You never know how many friends you have until you have extra outlets.