Hi

We will be there June 4-15 and live in the DFW area

We used a travel agent for our first trip and they couldn't get us any better deal than WDW Travel.(I didn't discover this site until after we came back) Our first stay was at POR and we LOVED it!! If a moderate doesn't quite fit your budget then the value resorts are nice, too. They do have some awesome theming -- perfect for the kids. If you are planning on using Disney transportation then you might need to be prepared for a little longer wait times for the buses at the value resorts. We don't typically use the buses (we drive from home so we have our own car) but I have seen the lines for the buses at ASMo and ASMu and they were kinda looooong during the summer.
Character meals are a great way to meet the characters. We love Crystal Palace and Chef Mickey's. IMHO, Chef Mickey's is pure Disney--we ate there on our first trip and had a BLAST!! We typically schedule our dinner during the earliest seating to avoid the dinner time crowds. If your girls are into the Princesses, then you should try one of the Princess character experiences. We really like the Princess Storybook Breakfast in Epcot (DD#2 loves Sleeping Beauty) there are lots of Princesses and the food is good.
If you haven't already, you should purchase one or two guidebooks -- our favorites are the Unofficial Guide to Walt Disney World and the PassPorter. DD#2 was just a little over 2 when we first visited but DD#1 participated in the planning-Birnbaum's publishes a guide for kids.
Be sure to visit here often---check the Restaurant forum for meal ideas, the Theme Park Attractions and Strategies forum for lots of great park info, Disney for Families and the Disney Tips forums are also great for trip planning.
Visiting WDW for the first time can be overwhelming--all the research in the world cannot prepare you for how HUGE WDW is and how much there is to do there.
Lots of luck--planning is almost as much fun as going.
