Definately plan for spending most of your park time at Magic Kingdom -- especially with a five year old! -- Keep in mind, there is no way you are going to see it all and pick out some "must sees" so you are sure to catch those.
If you guys aren't into the big rides, you can probably get your daughter into all the biggies for her, especially at MGM. Be sure to catch the Beauty and the Beast Show and Voyage of the Little Mermaid there too (along with Playhouse Disney) and just remember two words --- FAST PASS!