I'm looking to get SCUBA certified, and I'm kind of confused as to where to go because there are so many options! So, I know a lot of you out there are nature photographers, so I'm sure somebody's got their SCUBA: a little help, please? :) Do I go PADI, NAUI, SSI? What should I look for in a reputable SCUBA class? How much should I expect to be paying? I've gotten everything from $100-$400 in places I'm looking at, and I don't want to be ripped off, but at the same time, SCUBA can be dangerous, so I don't want necessarily want "cheap" instruction. Some places are offering to provide just about everything while others want me to purchase more