I'm just finishing up at CCBC, I am doing ATB at Frostburg and have worked full-time. Most people in my evening/weekend class managed to work full-time throughout the program. I don't have kids, but a few people did and made it work. Having some sort of flexibility at work and a good support system at home will definitely make it easier.
First semester can be a bit rough; you're on campus a bit more - 3 nights a week versus 2 later on, since you are taking Frostburg classes. You are getting used to the exams and have to go into lab to practice skills. We also had labs on the weekend for the first 8 or so weeks, either Saturday or Sunday, and they were 3-4 hours long. By the end of October we started clinical, which was both days for 5-6 hours, and I think we did that for 5 weekends. The Frostburg classes seem easier. You'll have 6 or 7 2-week modules, each with a reading and some sort of assignment/discussion board/quiz or paper. The key is managing your time to get it all done - get a good planner and keep track of all your due dates.