These are useful bits and pieces I've found over the internet. Few of them are mine - I've just whacked them here so I can find them easily, and maybe others will find them useful...
Setting up a development environment on OSX, with PHP, MySQL, Apache, Subversion and Eclipse.
A collection of useful commands.
Tip and tricks for using midnight commander in OS X
How to set up a virtual host on OSX running apache.
How to get Drupal's clean URLs working on OS X