Like I said before, if you're into trying some of those funny/weird hot sauces, hit up a California Tortilla if there is one near you. Their wall of flame has every hot sauce I've ever heard of, and many I've never heard of, including Prof. Phartpounder's noble concoction.
I'm quite partial to Rectal Rocket Fuel, myself.
Wall of Flame | Mexican Hot Sauces | California Tortilla
California Tortilla is a great place and I really hope they keep expanding. I've never had a bad experience--food or service--there.