Actually the thread referenced above has more information about Winston-Salem and Forsyth County than Greensboro. Since you are focused on Greensboro, there are other threads in the Greensboro-Winston-Salem-High Point sub-forum that have lots of good information about Greensboro and its suburbs. Lots to read.
In general cost of living in the Triad area is quite reasonable. As for recommendations of specific neighborhoods, you'll need to tell us what "reasonable" means to you, i. e. a specific price range. Also ages of children/grade levels?