I am using Cinema4DXL 7.3 for OS 9.2 right now, and am rendering with with multiple systems, varying from 400mHz G4, dual 800mHz Quick's, and my TiBook. The high end desktops are sporting anywhere from 1-1.5 gig of ram, but my laptop only has 512mB. I want to switch over my usage of Cinema4D to OSX, (yes, it is OSX ready) but I utilize EVERY little bit of RAM that is on these systems to render. Since OSX uses an extra 64MB of ram to run the system software, will I run into memory problems because of this extra usage? I know OSX claims to streamline the RAM allocation, but I fear that switching over will do nothing but cause 'lack of memory' issues, expecially while rendering. How beneficial will OSX be to me if I use extremely RAM intensive applications like Cinema4D? Somehow I think I will be better off using 9 because it only needs 64MB or ram to run, not 128. I appreciate good feedback!