Congrats! Man if I could go back to being a Loadmaster, I would in a heartbeat!
If you have any questions, let me know! I'll give some info to get you started.
Your initial load school will be in Sheppard AFB, Wichita Falls, TX. It is kind of a joke. Really, you are just learning Form F basics(Weight and Balance Form). Expect to meet up with lots of freshly minted basic trainees at this point.
From there, you go to a training base for your specific airframe. The course is called LoadMaster Initial Qualification (Or LIQ). C-5 is at Altus (absolute middle of nowhere) Oklahoma. I am not sure of the C-17 but would guess it is also at Altus. The training used to be contracted out to FlightSafety. It is about 2-3 months long.
The C-130 training is in Little Rock, Arkansas. I do not know much about that school.
I am guessing you probably do not have to go through Aircrew Survival in Spokane, but if you do, PM me. I have some VERY helpful advice that I won't share in public.
Your dreamsheet for bases will help determine what plane you get. I picked my bases by what plane I wanted(IE, I picked McGuire and Dover because I wanted a C-141 or C-5).
Think about it this way:
C-130- Not much international travel usually,unless you are based overseas, and when it comes, it is long deployments. Stationed all over the map. Expect to spend lots of time at Army bases tossing troops and hardware out the back(Sounds cool but it gets old really fast IMO). The Spec Ops 130's, and other special use 130's, are cool but don't expect to get into that stuff until you have been on the "line" 130 for a while.
C-5- Lots' of time broken down at big bases. There are so many LoadMasters' on a C-5 that you will spend the first few years learning systems and being the "Passenger Load", that is, the flight attendant. Dover or Travis are the active duty bases.
C-17-Goes everywhere the 141 used to. Small crew(1-2 loads, 2 pilots). If you want to get to the most overseas places, this is the top choice. This is why I wanted the 141; it got me to all sorts of awesome places. Not sure of all the bases the C-17 is at. Here are some I am sure of: Charleston, McChord, Travis(I think).