Cindy, Whether PADI, NAUI, or SSI (Scuba Schools International) all scuba certifying agencies, must meet the same qualifying standards. Rodale’s Scuba Diving has done an excellent article about this subject. The most important thing you should consider is the course instructor and there own experience.
http://www.newdiver.com/learntodive/trainagency/ Although I am not on the PG until the June 4 cruise, when choosing dives just be careful about some of the more advanced drift dives. For a new diver with little buoyancy control, some of these dives can be a little tough, depending on how fast the current is. This is just my opinion though and others may feel differently.
Welcome to LCT and enjoy your dive course, you will have a blast.
