Looks like someone has licensed the rights to program a version of After Dark for OS X. From what I can tell, the number of screensavers is limited (Very similar to the original lineup in the original AD), and you can download a VERY semi-functional demo from the site (you can view the screen savers in the Screen Effects preview window ONLY - not as an actual full-screen screensaver). Flying toasters seem to be the only updated screensaver - their original 2d, bitmapped incarnation has been replaced by a cute-looking OpenGL saver.
I'm just getting back into the Mac world after a brief hiatus (jumped from a 7300/180 to a 533mhz G4 Digital Audio, running Jag - a bit of a change =), and was looking for OS X software. I assumed this version of AD was common knowledge...
Lol, sry I left you hanging.. I read it in my MacAddict, but just do a search for AfterDarkX on google; its not that hard ^^;; I just have to find my MacAddict cd -.-