THe last time we went our girls were 4 & 6. We found enough to keep them occupied for probably two days of the trip and this was in the winter (ie. cool weather). One thing I distinctly recall was that at IOA almost everything gets you wet. Needless to say we had sniffles and sore throats before we returned home. I remember favorites were the Curious George play area, the Animal Planet show, ET (younger one was afraid of the dark pre show que though), all of Seuss land, Spiderman, Men in Black and the Hanna Barbera show (it's now Jimmy Neutron). There is also the Barney area too. Is there any way that you could do a split stay between US and also throw in a day or two at Magic Kingdom?