<B>General</B>
I also recommend getting a guide book. However I have a different one to recommend: <a href="http://search.barnesandnoble.com/booksearch/isbnInquiry.asp?userid=0DXLM0A1K4&isbn=0761537171&itm=3">The Walt Disney World With Kids book by Kim Wright Wiley.</a>
It has some great tips for taking your kids to WDW.
Staying at All Stars is great! We did that the first time too. Be sure to take afternoon breaks. Come back to the resort and swim and relax by the pool.
<B>Eating</B>
I don't know what kind of budget you are on, but you might want to make "priority seating"(PS) reservations for a Character Meal or two.
These meals are a great break from rushing around and the Disney Characters at the meal, come around to all the tables for pictures and autographs. We have gotten some of the best pictures at Character meals.
Here's a link to a web page with Character Dining info.. and a lot more:
http://www.wdwig.com/cb.htm
Disney has some great restaurants even without characters so be sure to look at making PS's for them too.
You can call 407-WDW-DINE to make them.
<B>Airplane</B> I'm assuming this is your Son's first plane trip too. This may seem obvious but be sure to bring things on the plane for him to do. Game Boys are great for that. I also let my son(10) use the Game Boy in the parks while we are on a line, or waiting at a restaurant to eat. My son wears a waist pack. That is where he keeps the Game Boy, his room key and some pocket money.
<B>Crowds and Extra Magic Hour</B>
This is Easter
week. I am going to be down there too that week. An older guide book labled Easter week as "Nightmare on Main Street" as far as crowds are concerned.
As a resort guest you have a bonus that will help you get some touring done before large crowds decend on the parks. It's called Extra Magic Hour. What this means is on certain days one Park will open an Hour earlier for WDW Resort guests only.
With Easter week, I really recommend taking advantage of it.
<B>Extra Magic Hour Schedule:</B>
Sunday - Magic Kingdom
Monday - Disney's Animal Kingdom
Tuesday - Disney-MGM Studios
Wednesday - Epcot®
Thursday - Magic Kingdom
Friday - Disney's Animal Kingdom
Saturday - Disney-MGM Studios
<B>Most Important</B>
Have a Great Time!! Disney World is a Wonderful Place!
Cindy in NY