Please help me make a career decision.

I have my RN(registered nurse) license from the state of Florida for the past 5
years.But here is my story.
I have my Bachelors in nursing and masters in maternity nursing
degrees from another country with 3 years of work experience in the field of
nursing education.After I came to US, I took the NCLEX exam(2003)
and got my RN license. But I never worked , since I stay at
home to be with my kids.Now I want to get back to work.I have
to take up refresher courses to get back to work.I am actively pursuing
different areas of nursing and health care and medical coding has piqued my interest, since I also have some back and knee issues.

Can someone please tell me if I have made a right choice?What are the scope
for this profession?Will I be able to land in a job as soon as I get a medical
coder certification.? My local community college offers
Medical Information Coder/Biller: Health Information Management course.
Is it good to take a course from a community college or from AHIMA?I prefer classroom courses to online courses since I have been out of work force for long.Does AHIMA and AAPC offer classroom courses too?
Please help me make a career choice and advise me on all the above issues.
Feel free to even suggest other career choices that you think will suit my background.Your valuable response will be highly appraciated.