3D Modeling and Visualization
Art lantis Render, DesignWorkshop, DigiCAD 3D, form-Z, Neon

Add-ons
Aperture, CADMover 5.0, CADtools, PowerDraw Translator

CAD Products and Companies
ArchiCAD, DenebaCAD, VectorWorks, PowerCADD

CAE Products and Companies
TetrUSS

Electronic Design Automation
Douglas CAD/CAM, McCAD EDA

Forums and Newsgroups
comp.sys.mac.graphics

Mac Resources
Architosh, MacShare.com