If you're interested in Manteo - which has a charming downtown area, I'd suggest you check out this discussion forum on another website: OBX Connection
Outer Banks Message Board | OBX Connection Forum 99% of the people are very helpful, as they are here and there are a number who live in Manteo.
On that site -
http://www.obxconnection you'll see other options to click on besides the message board. That said - be sure to check out the "search" function (though it is not as good as City-data's to look for information that has already been posted).
My next suggestion is that you begin visiting any of these areas in different seasons to see what they're like. We've been regular summer visitors to Hatteras Island, NC for about 30 years, however we began visiting well off season - as in Feb/March to check things out and find Manteo to be quite nice.
Best wishes!
P.S. I've asked about medical care on the site and know a few locals... The Outer Banks Hospital offers a fair amount and seems to be growing...there are, I believe, two "walk in" sorts of clinics that are supposed to be pretty good. At this point I do know that depending upon one's needs some do go to Elizabeth City, Norfolk or Greenville for specialist care.