Hi!
If you're looking for a more powerful BASIC programming language for the Amiga than AmigaBasic, you should check out AmosPro which can be downloaded from
the Amos Factory website. (Note: You have to join and log into the website to access the downloads area and if you don't have a floppy drive for the CDTV, you may have to use an Amiga emulator on your Mac to install the program.) Amos was a great way to access the capabilities of the Amiga chipset without all of the extra typing of C.
It's not as good as a productivity software creation package but, unlike AmigaBasic, could run on Amigas with 32-bit addressing. (AmigaBasic assumes the highest 8 bits of every address are unused and puts byte variables there. It also allocates 256 bytes for each line of code regardless of how much text is in the line. Lastly, AmigaBasic is the only software for the Amiga written by Microsoft. Surely you don't want to support that kind of company do you? ;-) )
--Sam