I wouldnt waste my time or money on Bourbon street, on a couples trip its very expensive and toursity. Maybe worth a walk down to check out the sites but thats about it. There is a rum distillary off the beaten path-you will need to take a cab that was really cool. It was called old new orleans rum i believe. We also did an above ground cemtary tour which was cool.
Also had a blast just walking around and taking in the sites, some of the street performer bands were really cool.