Glad I found this thread - ha! - guess I can safely unsubscribe from the ArchVision newsletter.
What about the CS4 plug-in for photoshop? Any chance of that working for mac-oholics?
http://www.archvision.com/ArchVisionViewport/
PS
Always disappointing to see a party going on and you're the only one not havin' fun... (ArchiCad or Artlantis, that is)