Must be in healthy shape for the medical evaluation portion, All branches require you to take the ASVAB. Depending on the MOS you desire it may be beneficial to review the broad topics covered during the test.
I applied in-person. I interviewed at US Army (Miami, FL) in Sep 2013
Interview
No interview process. It is a series applications and examinations throughout the process. This was accomplished by use of Army Recruiters. The recruiters were extremely helpful throughout the process. The process was not lengthy at all.