Thanks! I don't know what took me so long to get certified. I've been on many dives before this trip, and each time I did the beginner scuba class. It's silly really.
As for vacations, I have no such hangups on leaving behind friends and family that don't want to dive, lol.
One thing I like about Panasonic cameras that I don't like about the Canons and Nikons is the continuous AF in video mode. I have a really hard time as it is with an underwater housing that manual focus would be so very difficult. It is also harder than it seems to compose with a rear LCD. If I was just shooting stills it's not so bad I guess but for video it is very important. My Canon 5D2 absolutely kills my Panasonic in image quality and especially ISO performance, but the AF on the Panasonic makes up a lot of ground. Also, housings for small Panasonics are 1/4 the cost of housings for larger Canons.