Yes, I too am from one of the "Good ol' suthern states", and it is true that there is a fair population of people who do speak like that, although it's nowhere near as prevalent as one would think. At least, not where I am. I can't really talk about the other southern states, as I haven't travelled around much. At least not to those states anyway.
Anyway, yeah, we have people with a normal vocabulary too, just like the rest of the world. But we also have the people who have that lovely, characteristic twang as well