I'm an active duty AF pharmacy officer (you can see my profile on SDN). As mentioned above, the salary changes with location, rank and time in grade. Plus, the one item that probably won't show up easily is a $15K/year special pay. When I came in, I believe my total income was around $90K. After 16 years, I am now around $165K.
Not to state the obvious, but there are many other aspects that come with active duty. Understand you are responsible for everything. Even things you have no control over. There are other aspects such as physical fitness, deployment, and a host of duties outside of pharmacy you will be expected to perform.
As you increase in rank, you get further away from the patient. You cannot/will not be able to spend your entire career in any particular setting (clinical, outpatient, inpatient, etc). Admin duties eventually overtake pharmacist duties.
With a PharmD, you enter as an O-3 (Captain). This is sometimes a disadvantage because those around you don't know you just came on duty. It is assumed you have 4-6 years of experience behind those Captains bars. If you have retail experience, you will come in with more credit (not more rank). This is definitely a disadvantage because you will meet your promotion board for Major (O-4) sooner. However, you will not have enough evaluations reports to make you competitive. And in today's environment, being passed over for promotion is a killer. Not an issue if you commission right after graduation.
I am prior-Army, so I did not go through the AF initial training. However, I have been told it is five weeks long and is not much more than learning how to put on your uniform and salute. It's called Commissioned Officer Training (COT) and if you Google it, you'll find a forum similar to this one, with tons of information.
I could go on for hours, but I'll end here and see what specific questions you may have at this point..