OS X Ported Unix Apps


Okay ... after I have X-Windows up and running .. where can I find all of the Unix apps that work and have successfully been ported. I am a Linux user, and quite familiar for the most part, but obviously -- most all graphical Linux apps must be ported first before they will run on XWindows on Mac oS X ... Is there a place whree I can find a list of all of the ported applications or anything like that? Any help or resources would be greatly appreciated.