Tracker,
I agree with the others who say get the highest level you can, the CDL A with endorsements is more valuable. If you went through the 88M course(ARMY) or any other branch truck driving school, and still have your military license, you may be qualified already, check with your state motor vehicle office. I sort of screwed up and did not roll mine over in '91, when I had a chance, as I was not planning on driving commercially. Might have helped after I retired from employment counseling.
Hawkdancer