I recently bought a Sony A100 to start getting back into SLR photography after many years of letting my Minolta collect dust while I used my loely point & shoot digitals, and right now, I'm just playing around with the 18-70 kit lens to get the feel for it. I am looking ahead to our next big trip, WDW in January, and thinking about what I want to take. I'm picking up a 70-300 lens this week, along with a travel tripod, and using the kids as an excuse to head off to the zoo to try it out. Should those two be okay for most purposes at Disney, or do I need a third lens to handle lower-light situations like inside PotC and during some of the shows? I really don't want to be carrying a ton of gear, since we're likely to be carrying jackets and such as well, but I want to have what I need to get the shots I want. Its a balancing act that I don't quite have the hang of, so I'm asking those of you with more experience at this - What do you take to WDW in your camera bag?