I have used CNX2 for 98% of my post processing supplemented by an old CS version of PS for combining shots with multiple exposures, some cloning and a few panoramas, etc.
I recently upgraded my Mac Pro to Mountain Lion and it does not support the CS version of PS. I really don't want to spend $500+ for such a small portion of my PP. I have been entertaining Photoshop Elements 11 but I understand it only operates on 8 bits instead of 16 bits or better. I am printing with an Epson 3880. How significant is the 8 bit limitation? Any alternative suggestions?