You live in the dive capital of the world, why not get certified here? People fly in from all over to get to dive some of the real gems we have here. We have the Springs (year round 72 degree water temp), the Atlantic, the Gulf. We have caves and caverns, the Keys, shipwrecks, reefs, etc. Get certified here and enjoy your trip to the Dominican by making it a dive trip and spend a lot of time underwater diving instead of having to set aside 2 or 3 days to finish your course there. Also, look around your area to find a great instructor (may or may not be affiliated with a shop - may or may not be PADI or NAUI or SSI, SDI, SEI, etc), not just one that is close or cheap. Ask some questions on SB about who you should use in the area. One more point, ALL instructors in the US carry liability insurance (just in case), the rest of the world ??? up for grabs.