commuting

Hi all, Long time lurker, first time poster. I'm a part-time MIL guy with a family (two young kids). I'm actually pretty happy with my civilian job/life but am tempted by the long-term upside of the airlines. I have done my fair share of reading, searching old threads, picking brains offline...

I might be commuting out of ATL for the foreseeable future. Some old threads mentioned parking at the Marriott, but after talking with someone at the front desk it doesn't look like that's offered anymore. Any suggestions? I heard on airport parking requires SIDA... Thanks in advance.