Wow, that shot that Scott took of the humphead wrasse and Roger's rainbow are really nice!
I'm not really into camera's as such, just taking photos. The brand/model of camera is really insignificant, the camera is just a light tight box and they all do essentially the same thing.
Favorite shot? That'd be tough. Here are a few of my fishing pictures:
http://www.alamy.com/search-results....-1&lic=1&lic=6