The oral/practical one-two punch is the hardest part of getting the license. You'll be there a few hours doing a flight plan and getting pounded by the examiner.
I went to FCA
(website posted above) for my license. They've been using the 737-200 for their flight planning for quite a few years now. Many of the other schools are still using the now defunct 727-200, but that should not be a deciding factor in who you ultimately choose. But one thing that FCA
has over Sheffield is that Tucson, being so close to the Mexican border, they are in entrenched in Mexican culture. I still need to go back down there and get my fix of Albondigas and Sonoran hot dogs, the little carne asada hardshell sandwiches you can buy with them, and Pepsi and Coke made with REAL pure-cane sugar.
You'll constantly be learning after you get your license. The license is only the tip of the iceberg, and if and when you do get your license, and a job, the operation that hires you will train you to their specifications.
I bought a rather nice book from Sporty's on aviation weather produced by jeppesen (much better than what Gleim put out, and not in lecture format) that sits in my book shelf, and I pull out from time to time. The schools will have a standardized curriculum, though, so don't spend too much pre-school.
Two all beef patties, special sauce, lettuce, cheese, pickles, onions on a sesame seed bun.