It is a Pentax K10D with a 50mm Macro. The lens is an older lens, and is considered one of the best Pentax ever made.
The fish is the Arc Eye Hawk. They have them with some bit of regularity at Emerald Bay. They are not quite as expensive as a Flame Hawk, but similar other wise. I dont think they are quite as popular becuase their body is a light black/grey. But they have the really neat Arc.