So it looks like there are only three reasonably priced RAW conversion programs for the Mac: Bibble Pro 4.3 (~130$), Capture One LE 3.7.1 ($99), and Nikon Capture 4.3 ($99).
I tried all three, and Capture One LE seems to have the best output. It’s large advantage in my case is that it is very good at getting rid of the color moir
Grampa