Bit of background first: I've been diving for 24 years. During that time I've done a bit of everything, including being an instructor, wreck diving, cave diver etc. These days I'm so busy with my job that I just get to spend some time in warm waters and have in the last few years taken to photography.
I've been diving with a Panasonic Lumix DMC-TZ5 with their underwater housing for a couple of years and have been getting some good pics with it, but it's reaching the end of its lifespan. The thought of a big camera fills me with some dread - I want something that's a little better than what I have, but I like the portability of it. So, I'm considering the RX100 with a nauticam housing. So, I'm interested in people's opinions. i've attached a couple of photos to show what I'm currently taking, which are limited somewhat because I don't have the ability to take wider shots.
Also, my kit is getting old and I will be needing to purchase a new bcd. What are people's thoughts about back inflate vs traditional etc?