You can either install all packages one after another and follow this tutorial or - if you never installed TYPO3 on your system before - you can also use the TYPO3 QuickStart 3.6.1 Full Installer for OS X (currently supports both, Jaguar and Panther (10.2 and 10.3)). You can download it at http://typo3.org/1274.0.html. It is a »meta package« and contains all necessary packages (PHP, MySQL, ImageMagick, phpMyAdmin and the QuickStart site).

No matter if you use the installer package to intstall TYPO3 on a »public« server or you do it by hand, you really should change all of the default passwords! The package makes it easy to install TYPO3, but does not relieve you of the duty to keep your system secure! Also check for updates of the individual packages on a regular basis. All packages in the installer are available from the websites as mentioned below. You can (re-) install and update each package individually. Please also note that the install tool is acivated by default in the TYPO3 QuickStart 3.6.1 Full Installer.