abwdreaming:
we too will be at the YC - you will love it, especially if you have kids!!!!!! I think if you show your ps confirmation at the front gate you should have no problem getting in the park for your dinner; we are also attending on the 19th but lucked out and got an early reservation at California Grill.
as far as comunte time, if your flight is on time then you should be happily in your room and ready to roll as you have planned -
around 5:30; you can catch the shuttle bus right outside the resort;
I will be there with DS(12) - our first ever December visit - we always visit in Feb, May and Oct;
Hope you have a wonderful time!
Mama Quack