Sent you a private message.
Let me say this about your time frame. It's HOT!!!! Not sure where you're from, but it sounds like the West Coast. Prepare for heat that you can't imagine. For real. I spent my younger years living in Texas and visiting family in Texas. I thought I knew humidity. But Orlando is different for sure. Also for weather, that's the rainy season - opposite of ours. Buy some ponchos and keep them in a backpack at all times while at the parks. Rains will come out of no where. And these aren't sissy drops of rain like we have. They'll beat you up and soak you in seconds. That's the scary part. The rest is good.
For a really good experience, stay at one of the moderate hotels. All 4 are really nice and come in at a good price. When you stay at these, you get great pools with waterslides, really nice onsite restaurants, bus service to all 4 parks, 2 waterparks and Downtown Disney/Disney Springs (no driving or car rental needed), an awesome Disney experience from hotel CMs, and Mickey's Magical Express which takes you to and from the airport and even takes care of your luggage when you land. Once you get on your plane, your Disney Magic begins. My favorite moderates in order: Coronado Springs, French Quarter, Caribbean Beach, Riverside. I'm not a fan of the Value resorts and the Deluxe are just too pricey. Like DLH pricey.
There's 4 parks there, so when we go, we like to hit each park twice. That makes for a very long trip - 9 nights in order to get 8 full days. But if you're flying all the way out there, you might as well stay long. Keep an eye for deals on room discounts and free dining plans. I worked with a
Disney travel agent that I found from a Mouse "savers" website. If you like waterparks, they have 2 world class areas with slides that'll scare you to death. Really fun!
Catch all of the live shows if you can. Beauty & the Beast and Indiana Jones Stunt Show (DHS), Nemo: the Musical and Festival of the Lion King (AK). Great stuff.
Always plan to catch the nightly fireworks and shows at the parks (I hear Animal Kingdom is about to lose their short-lived show). But you get F! every night at Disney Hollywood Studios, amazing show called Wishes at the MK, and the most incredible thing you'll ever see at Epcot call Illuminations. Change your life.
And the table service dining at WDW blows DL out of the water. So many choices and good quality (though there's many Disney-whiners who'd disagree). At MK, we love Liberty Tree Tavern, Crystal Palace, and Tony's Town Square. At DHS, SciFi Diner has cool ambiance to make up for just burgers. At AK, Tusker House has some great african cuisine, and Flame Tree BBQ is a great counter service. And then there's Epcot....awesome food everywhere in the World Showcase. Fish&Chips at UK, Tangeriene Cafe at Morocco, Biergarten at Germany, San Angel Inn (for ambiance, not food) at Mexico, Le Cellier in Canada, and my personal favorite - Akershus in Norway. Love it and miss it. They also have good dining at the deluxe resorts such as 1900 Park Faire at the Grand Floridian, and Chef Mickey's (like Goofy's Kitchen) at the Contemporary. I keep hoping that one day DL will be on the same level of food selection at WDW, but it probably won't happen.
I can't advise you on FP+ as my last trip was right before it was implemented. Thank God.
Hope this at least gets you started.