If you're looking to customize the look-and-feel of your Leopard Mac, Magnifique makes it easy to do. And it's free. They provide a GUI that lets you select from a wide variety of themes to customize your look-and-feel. And you can customize any theme to get exactly the look you want. They have a community that's constantly creating new themes and making them available. And if you create a custom theme of your own, you can publish it for everyone else to share.