My parents retired in Fayetteville in the late 80's - they've been very active in the community, and have actively supported the downtown revitalization, as well as the Cape Fear Regional Theater. Despite it being a military town, and therefor somewhat transient, there is a strong community of people who are not military as well, so you should be able to find what you're looking for.
I would check Cumberland County schools
http://www.ccs.k12.nc.us/
and find out who the contact person would be for special ed services. They can probably help you find services for your son before he enters kindergarten as well.
Good luck!