Hi, Edward!
You are so smart to want to research as much as you can as you plan your upcoming FIRST VISIT to the most magical place on Earth! Well done!
Anything you could possibly want to try at Walt Disney World can be found online, either on the official WDW webpages, such as
DisneyWorld.com (check out the "Things to Do" tab),
DisneyParks Blog, or even here at the
Walt Disney World Moms Panel, or on some fantastic unofficial sites, such as allears.net, disneyfoodblog.com or attractionsmagazine.com.
I suggest that you start by research the time of year or dates of your travel. Events, opportunities and activities can all be seasonally-themed, or may coincide with special events at each park, so the more specific you can be in your search the better.
Regarding booking your Fantasmic! Dining Experience, either call Disney Dining at (407) WDW-DINE or go to the online
Dining Reservation site to book online. These...no pun intended...FANTASTIC packages book up very quickly, so be sure to contact Dining as early as up to 180 days prior to your Resort check-in.
Send me your dates, if you're on a Dining Plan and resort and I'll see if I can point you in the right direction for what not to miss, especially that which comes at no additional cost. I love to help!