CO2 filling - Summerville

Any know where in the Summerville (preferably) area where one can get a CO2 canister re-filled? I considering getting a kegging system to force carbonate sodas. But before I go down that route, I want to make sure that there's some place out here where I can get the canister filled. Wouldn't do much good to get the setup, only to find out that there isn't a place around here. I live out in the Jedburg area, so something out this way would be great, but I do work out at DI (when I can be bothered to actually drive into the home office)... so even something in North Charleston or even MP areas would work.

Thanks!

I use Pye Barker on Leeds Ave. Its $10 for a refill. Good guys and pretty fast, normally just stop in on my lunch break. 3898 Leeds Ave North Charleston, SC 29405 Phone 843-767-3080