Hi Aiesha!
I'm assuming you mean Walt Disney World in Orlando, Florida but some of the resources I mention below will also apply to Disneyland in California.
First, be sure to request your free Walt Disney World Resort planning DVD. The free planning DVD can be ordered
here. You can also watch videos on line there for various Disney Parks and Resorts activities, such as Adventures by Disney and the Disney Cruise Line.
I highly recommend buying the book "The Complete Walt Disney World" by Julie and Mike Neal. It's a great book for first time visitors with just the right amount of information without being overwhelming. It's also a beautiful book full of fabulous color photographs. It will give you a good feel for all there is to do at Walt Disney World.
For online resources, I recommend visiting the independent website AllEars.Net and MouseSavers.com. Both are fabulous resources for anybody planning a Disney vacation!
Hopefully this will give you a start. Write back to me with more questions as you develop your plans! Have a magical day!