what thickness wetsuit should i get?

hi i have just started to really get into surfing and was wondering what thickness of a wet suit i should get for when it gets cold. i surf at holden beach and ocean isle. they are on the southern edge of NC. i was thinking a 3/2 suit might be ok, but does the water get too cold for that in the middle of the winter? im new to the whole wet suit thing so i dont really know much.
also if anyone surfs near there and would like to have someone to surf with im looking for people. Im 24 and i usually go everyother weekend. i hate surfing by myself though and none of my friends like it enough that they are interested in surfing in colder months. i stay near holden beach because thats where my parents have a place. im just a beginner and have just gotten to the point where i can go sideways on the waves and ride in front of where it breaks. i ride a 8'4" long board, and i bought a 6'8" fun board. although im afraid i might be a hair to heavy for it, because it feels pretty sluggish when i stand up on it compared to my long board.
anyway thanks for any help
AJ
also if anyone surfs near there and would like to have someone to surf with im looking for people. Im 24 and i usually go everyother weekend. i hate surfing by myself though and none of my friends like it enough that they are interested in surfing in colder months. i stay near holden beach because thats where my parents have a place. im just a beginner and have just gotten to the point where i can go sideways on the waves and ride in front of where it breaks. i ride a 8'4" long board, and i bought a 6'8" fun board. although im afraid i might be a hair to heavy for it, because it feels pretty sluggish when i stand up on it compared to my long board.
anyway thanks for any help
AJ