I spent much of my youth in Georgia, Atlanta to be more precise. Atlanta is quite a bit different than the rest of the state, so I don't know if I can help much. Valdosta will definately have fewer people than Hampton. Things are a bit slower down there if I remember correctly. Weather wise, Think of the traditional deep south, hot and humid, with spanish moss on all the trees and you can probably get a general idea. you are probably looking more at mudding trails around the area than other type of wheeling.
Valdosta is right off of I75, which will get you just about anywhere quickly. One thing I miss about Atlanta is we had access to I75, I85, and I20 right there.
It has been about 10 years since I was down to Valtosta, so my info is out of date..
-Copperhead