Everyone wants to know the secret sauce. Package Control is a great package manager. See the installation guide on how to install it. I use an enhanced Monokai color scheme called MonokaiFree. I use A File Icon for sidebar icon support.
Being able to run your PHPUnit tests from within Sublime Text is a productivity win. This is especially true if you like Test Driven Development. PHPUnit Kit has all the features you will ever need to run PHPUnit tests from within Sublime Text.
