If you are new to PHP or if you are experienced with PHP, all information can be found at http://www.php.net

PHP Latest Downloads
http://us3.php.net/downloads.php

PHP Installation
http://us3.php.net/manual/en/install.php

PHP Configuration
http://us3.php.net/manual/en/configuration.php

PHP Manual
http://us3.php.net/manual/en/

MySQL 5 Downloads
http://dev.mysql.com/downloads/index.html

MySQL GUI Tools (Administrator, Query Browser, ect)
http://dev.mysql.com/downloads/gui-tools/5.0.html

Have fun.