Thanks for the warm welcomes!

I really appreciate it.
It still feels unreal that I booked this thing. I was so caught up with the booking process that I forgot to mention one little major detail - my 18 month old (she'll be 22 months at the time of cruise) is gluten free. It's not confirmed if she's got celiac disease or something like that, we haven't done the tests yet because they can get pretty invasive (and she would need to start eating gluten again before the tests). All I know is that when she has something with wheat/gluten, she's up all night screaming and miserably grumpy during the day, and we definitely don't want that on a cruise! She's also pretty sensitive to MSG, it makes her cry at night also. So I need to call back the disney reservation people and have them note it. Since she'll just be 22 months, she'd be perfectly content with bunless cheeseburgers, hot dogs, yogurt, cheese, and fruit - basically her diet now, so I hope it won't be too much drama. Does anyone know if they charge more for gluten free food? They did at Great Wolf Lodge, but that's another story...
How do we know what nights we get to go to certain restaurants? Being first time cruisers we don't pick anything until Feb 14th, so I wait until then to pick things out?
Not sure if we'll do the fish extender thing, I need to read more on how that works, sounds kind of fun though, my 4 year old would probably get a kick out of it.
Looking forward to meeting everyone!