I come from the other side of the fence on this one. I prefer a camera that uses AAs. Rechargeable AAs are extremely cheap and not difficult to carry the extras. Plus, if you plan to keep the camera for a long time, there is a chance that you cannot even buy the proprietary batteries in the future. AAs are here to stay. At WDW, I have almost never had to change batteries during the day with AAs. I usually pop in a fresh set every morning and they last all day plus some if I forget to switch out. I take between 200-400 pictures a day.
Kevin
I agree with this in general. I've been using rechargable AAs for my cameras for years. Originally with my first digicam (Oly D-500L) and then with my trusty C-2100UZ (Great camera, I still have it, but it has been replaced by my Canon S3IS for normal use).
I have a camera bag from Tamrac that has a pocket with a little "bandolier" for batteries. I would carry two sets of charged AAs in the bandolier and be able to change out my batteries in about 15 seconds when needed.
Back in the days of the D-500 and when I first got the C-2100 the batteries didn't hold as much of a charge as they do today, so I would often get into the second set, and sometimes the third in a single day of shooting at WDW.
For our upcoming trip (we leave Saturday morning!!!) I've abandoned rechargables altogether in favor of Energizer e2 lithiums. They are light, and have a remarkable lifespan. I'm still using the original set I put in my camera in the FALL - about 750 photos and 30 minutes of video in that time.
I'll bring the set in the camera and one backup set in the bag to the parks each day. Much lighter than LiIon rechargables and very long lasting.
For zoom class digicams, I think this is the best of both worlds.
For small pocket sized cameras (like our Canon SD-200) I like the rechargable Lithion Ion, because it doesn't take up the space of the AAs.
Ted