Recently, the Barbecue Jew blog posted about this video on Lexington barbecue on the Davidson County web-site. It really is a good, if dry, introduction to general Lexington barbecue. There are variations in style elsewhere around the Triad, but the differences are what makes NC barbecue fun. If the barbecue is as dry as this video, you need to add a little dip.
You need to scroll down to find the video. NoScript complained about the play button, but there was no particular technical problem.