cmactex – TeX for the Macintosh
This port of TeX for the Mac OS/X is based a current TeX system, and adds a DVI viewer MacDVI. (The author also offers a port of Ghostscript, with a PS->PDF. capability.
It is compatible with common Mac text editors, and will cope with both files created either under Unix-based systems or under Windows.
Shareware: A fee is required
components (or support) of TeX distribution