Thanks for showing me your camera set up, I am in the middle of upgrading what I was using and now may rethink the housing I purchase. I can say based on what I saw in your reduced file images that I think you are getting more from your camera than most ever will. Those close ups were very sharp & perfectly focused, and I am a serious amateur photographer who would be very pleased to do that well underwater. ( My real investment in photo gear is all for regular use, but I just sold my Canon S1 IS & housing & have bought a Canon G 9 but was still undecided re housing choices. I have 2 Sea & Sea strobes).
Thanks, I bought the Sea & Sea setup because I was too confused about all of the camera gear. I decided to go with something easy until I figured out what I wanted.
Now that I know, here is my recommendation: if you want "memory photos" then go with a compact little setup like Sea & Sea. If you want "good" photos then get an Olympus or Canon and something like an Ikelite housing. The Sea & Sea setups are nice and convenient but you pay for that convenience. With a little more effort you can put together a better, cheaper setup. I was just too lazy and frustrated to go through that effort.