This camera (Kingfisher V) would be a massive overkill...IMHO of course
Why would you cool Sony's clean CCD, that inherently has a very low dark current in 'regular' astro cameras (Atik, QSI, SX), to over 110 C below ambient? Unless of course such low temperature, apart from evaporating already negligibly small dark current, does some other nice tricks to Sony's CCD?