Thanks for all the positive feedback....our learning curve has gone straight up thanks to this website....we've also learned how important great subject matter contributes to the overall quality of a trip....the 22 hour flight to Bali and on to Wakatobi was definitely worth it 
We shot everything in AF-S...single area focus mode.....all manual controls and manual strobes....I had intended to try AF-C if I had problems getting good focus, but I was pleased with the performance from AF-S and never changed
Kimberly shot the 60 for the first several days, but after she used the 105, I had a hard time getting it back from her
....overall the auto focus worked great except in the worst lighting conditions, but we could always get the shot off......I used the 12-24 quite a lot until I finally got the nerve to try out the 10.5mm.....I really liked the 10.5....while it's difficult to light and compose because of the wide view, it seems sharper and well suited for underwater subjects....however be warned, you really have to get all over what you are shooting....my strobes were probably 6"-8" either side of my handles and aimed straight ahead....I tried aiming out, but lost the center....not much room for error with this lens
The real value for me in the 12-24 was the ability to zoom the lens...duh!...gave me more range and the ability to compose on smaller subjects.....I tried to shoot everything in the f8 to f11 range...corner sharpness seems to fall off if you open it up too much....must be the dome, because it's much sharper for topside work
We used the 18-70 several times and found it very acceptable....while this lens serves the middle zoom ground, we found that we liked the extreme ends the best and gravitated back to the macro lenses or WA...could be dive site related, as Wakatobi doesn't really have anything big to shoot.....it's either macro or beautiful walls
I was amazed how easy it was to get used to the viewfinder....sure, bigger would be nice, but we didn't have any trouble composing and being able to read the information across the bottom....the Ikelite housings worked great and were very light underwater....changing shutter speed and f-stops became automatic....while I still have aluminum envy, I can't imagine how other housings could be any better underwater
Herb, I think Leslie answered your question...we sure didn't know what it was 
Leslie, thanks for the head's up on the mis-labeled flatworm and sea cucumber...I've corrected my webpage :wink:
Karl