Prichard's has made a nice reputation for themselves based on their rum, and Firefly Distillery out in Wadmalaw Island, SC, has also been making some (IMHO) really good rums. I visited their distillery recently and tasted through some, then brought a few bottles home I was so impressed. Here are some tasting notes on their spiced rum and coffee rum, both really impressive.
They currently have distribution in SC, and are working on Georgia too. You can always stop by my place to try one, too!
I'll be up at Prichard's in two days, hoping they have their chocolate bourbon and new rye whiskey available to taste.
Re: Southern Rum
Pritchards makes some of the finest rum in the world in my opinion. I love the white. Takes like butter rum lifesavers.