[jamestnz]

Wow, your history matches mine quite closely (manually typing BASIC programs into the C64 whilst not really "getting it", then going on to the Classic Mac OS and onto BBSes). I first got into the Mac around System 6 with a Mac 512Ke, then onto a Plus and other machines from there... remember hacking at apps with ResEdit?

Also keep in mind that the standard language for the classic Mac was originally Pascal[1], not C.

In addition to Metrowerks CodeWarrior (which I also recall being pricey), there was also the Borland TurboC++ family. And starting from around System 7 there was MPW from Apple[2], which targeted a number of languages and was eventually free.

[1] http://en.wikipedia.org/wiki/MacApp

[2] http://en.wikipedia.org/wiki/Macintosh_Programmer's_Workshop