I'll be taking my updated Standard First Aid / CPR A course (16 hrs) in a couple of weeks.  I would have prefered the CPR C course (20 hrs) but this is the course they were offering at work (for free :-)
I'm also signed up (at my own expense) for a Wilderness First Aid course (40 hrs) because I do a fair bit of camping.  To participate in a WFA course you need to have the First Aid.  Beyond that there is Wilderness First Responder (80 hrs).
I have a nephew that just finished his EMR training - a prerequisite for his Fireman training.  Eventually he will have to get his EMT-basic to becone a full fireman.  Beyond that is the EMT-Advanced and EMT-Paramedic but that is more for ambulance attendants.