I applied through a recruiter. The process took 2 days. I interviewed at US Army (Flint, MI) in Jul 2012
Interview
The interview only consisted of a series of questions such as previous school, work, any law violations, and what I would like to do. He/she will then show you some videos of an MOS you might want. After that, if you want to continue, the recruiter gets some information for you, and takes you to the nearest MEPS (Military Entrance Processing Station). To take the ASVAB. Once your scores are in the system, your recruiter will look at job openings based upon your scores. You have the choice to choose a job that he/she lists, or wait a couple days to search for more jobs. If you cannot find the job you want, the recruiter will then say, "you will have a better chance of getting the job you want by going to MEPS to get it." I suggest not doing that as you will have to go through the entire process of joining minus the last step which is going under oath to have another list pulled. If you do not find the job you want, I suggest waiting for it to become available because you will be stuck in the job you choose for the duration of your initial contract. You can change after you fufill your first contract.
They sit you in an old building and ask you about yourself and your medical history. Then they document all this info before they have you sign a documents and waivers.
Just go to your local recruiter and take the ASVAB. After completing OSUT, you'll become an infantryman (11B). You'll be assigned your unit upon graduating. Make sure to stay in good physical shape.
You express interest and they call you. You will have to answer some basic questions about yourself and take a placement test. Then you will be sent to a medical processing facility to do a medical exam.