I think you are making a great choice! I LOVE L&D/NNICU! I have been a nurse for a little over 12 yrs, and have been in this area for most of that time. For a few yrs, I tried out a few different areas and always came back to Womens/Children's.
I think your background will be a huge benefit, and the fact that you are an experienced nurse is also a HUGE plus! A lot of people forget that we deal with all types of issues...medical and psychosocial in this area.
Most of the time, working in L&D, the RN is very autonomous; being organized and being able to "think on your feet", are helpful!
Anyway, good luck, and have fun...this is a wonderful area to be in!