Hi Kelly,
I'm so happy to hear that you are considering a Walt Disney World vacation with your soon-to-be toddler! Some of our best, and by far our "easiest" vacations were when the kids were very young. They simply enjoy the sights and sounds that surround them, and it is inspiring to the happiness of an innocent child. Two is a GREAT age for a first trip to Walt Disney World, especially since she'll be able to enjoy the parks for FREE!
One of the best things about Walt Disney World is that it was specifically designed to enable adults and children to be able have fun together. You will be able to experience any attraction that doesn't have a height requirement with your daughter.
There is a lot of information about traveling with little ones
HERE, and be sure to download and print this toddler-friendly
park map!
Hope this helps - once you make your decision, come back with all of your vacation planning questions!