Iridient Developer (was RAW Developer) is a powerful image-conversion application designed specifically for OS X. Iridient Developer gives advanced photographers total control over every aspect of their digital camera’s output, yet still provides easy drag-and-drop conversion convenience and access to basic adjustments for the casual user. Iridient developer supports RAW files from over 620 digital camera models.
NEW VERSION IS OUT: 3.6.4….this one is way old.
Updated!
SUPERB: One of the best RAW editors in the market, seriously under-rated.