Vista Compatability and Drivers
Be sure to check the Hardware Compatibility List to see if your device is officially supported under Vista. The list isn’t complete, but if you see that a particular device is Certified for Windows Vista, you can be a little more confident that you’ll find up-to-date drivers for it. Alas, the device pages don’t contain links to additional information or drivers. It does indicate whether a driver is included as part Windows Vista or via Windows Update (or both).