Great, thanks Bart. The Make file now works and I have a Supermodel build. Bad news is the same graphics bug exists with the new renderer in (unless I need to enable it somehow?). I have attached the makefile we've been working on (zipped so it can be uploaded here). Although we still have the black graphics issue in OSX, it's been nice to help out in some way!
If there's anything else I can do to help as an OSX tester, let me know.