A classical LaTeX editor on Mac is: Texshop. Texshop is a nice and simple editor that allows you to edit, compile and preview the resulting PDF file.

Texmaker is an alternative editor, that is more powerful and cross-platform, based on the Qt-library.

The new and fancy TeXnicle is a very nice OSX-native IDE that manages larger LaTeX projects, shows the document structure over many included LaTeX-files, and many more. It is a Lion application with full-screen mode. This software is strongly recommended.

Latexian is a commercial LaTeX-environment, similar to TeXnicle.

Scribo is a simple and bare environment similar to TeXnicle, in its beta release, but small and easy.

There is also TeXworks, also a multi-platform editor and viewer.

I recommend TeXnicle and Texshop. You might still need or want:

• BibDesk (should come with the most recent MacTeX distribution)
• LaTeXiT (should also be installed with the most recent MacTeX)
• Skim (PDF-viewer that does support auto-update, when a LaTeX-PDF-file is being updated)

And for linguists I recommend these pages:

• LaTeX for Linguists
• Ling-TeX
• LaTeX/Linguistics Wikibooks
• LaTeX Group at UBC Linguistics
• Have a look at Damir's documentation on drawing trees with LaTeXIt
• and there is also a LyX for Linguists documentation, good even if you do not want to use LyX

Tags: Latex, Mac, Texshop, TeXnicle, TeXworks, Scribo, Latexian, BibDesk, LaTeXiT, LyX, Skim