Fink is a SourceForge project to produce and distribute binary packages for MacOS X environments. They provide packages for Tcl/Tk - see: http://fink.sourceforge.net/pdb/package.php/tcltk and Expect: http://fink.sourceforge.net/pdb/package.php/expect among others.Perhaps someone on the wiki can work with these folk to get some of the other useful extensions packaged up?
Category Package