Lucky you, we are in Houston and the Cajun chef around here is MrD! He has been following Paul Prudommes recipes for many years.
I live about 12 miles north of Avery Island. This is ground zero for Cajun food. New Orleans may get the edge for creole cooking, but if you really want authentic Cajun, Lafayette/New Iberia/Broussard/St. Martinville/Abbeville are where you want to go. I live pretty much in the middle of all those :)