Take a look at
http://www.easywdw.com/cheatsheets/mk_cheatsheet_easyguide2.pdf
It should give you a good idea of what to do when. How closely you stick to it is, of course, up to you.
If that doesn't appeal to you: The 3 mountains and Mine Train will have the longest waits during the day. I would hit Space at Rope Drop, and FP the other 3.
Also, since you're going over the summer, hit
www.walmart.com and pick up 2 of these:
http://www.walmart.com/ip/Misty-Mate-Inc.-Misty-3-Oz.-Personal-Mister/19687876 (you can share with the boys.) They'll make the summer heat and humidity so much more manageable!!!!
Plan to do lots early, and I would FP for afternoon, when the crowds are crazy. Splash Mountain will probably get you wet, so I would (and have) plan to FP that for mid afternoon. Likewise, Laugh Floor has an indoor waiting area, so plan that for the heat of the day.
Oh, and somehow I missed the fact that you have a daughter-- sorry. She'll want to do some of Fantasyland. We all love Peter Pan-- and you'll want to FP it, the lines get crazy. And for some (bizarre, if you ask me) reason, my daughter still loves the Magic Carpets of Alladin-- it's like Dumbo, but with shorter lines and a spitting camel. I wouldn't spend a FP on it, but had to mention it.