GameMaker - Easy to use Mac game creating program. Received 4 cow rating (out of possible 5) from tucows.com
Mac Game Creator Toolkit - The Mac Game Creator Toolkit CD-ROM includes registered versions of some of the best game creators for the Mac including Coldstone RPG Engine, GameMaker, Adventure Creator, StoryMaker, and more.
MacStandardBasic Outpost - The best place for help with Zcurve's MacStandardBasic. Source code, related links, and a message board.
Staz Software - Developers of FutureBASIC. This is the programming language I use most often. Nearly all of my programs were created with FutureBASIC.