Sailfish, I believe I know the place your talking about because I also live near charlotte, lake norman, and I visit this LDS quite frequently, (if its the right one). Im taking my OWC class portion and trips from them beginning next week.
On equipment, they do carry a few different brands, MARES, Dacor, Sea Elite on BC's, and a variety on mask and accessories, and if it's the same group, they are good folks. I've purchased all my masks, fins, snorkles, boots, gloves for me and my future "wife" buddy. They are competitive and have the best prices around, I've looked. Once you've looked elsewhere, you will be back there.
Are you taking your OWC yet? We will be taking their March trip to Fla on the 17th. Not a bad place to do the OWC, better than the quarry.
Also, this board is great, I've learned quite abit and haven't even touched the water yet. Let me know where you are and we'll do some diving once OWC is complete.
waterdogs