Have you always wanted to build your own theme for Vista? You can with a new application called Vista Style Builder
and the How-To-Geek
has a great walkthrough to get you started with doing so. The Vista Style Builder application lets you modify the visual style of your Vista theme or even import styles from XP to be used on Vista. Also, if you’ve found a style you liked on the web, like on devianART, for example, you can also open that file up in the program and use it as a starting point. From there, you can completely customize every aspect of the UI and theme, using the software’s easy-to-use built-in tools. The program is not available just yet, so bookmark this download page
and check back soon. The program will not be free and pricing info is not available yet, but the How-To-Geek
promises it will be reasonable.