Boot Camp Software Update 3.2 for Windows
If you’re going to suffer through Windows, you should at least run it via your Mac. And if you use Boot Camp for that purpose, you’ll want to look into Apple’s Boot Camp Software Update 3.2, available in both 32-bit and 64-bit permutations. In addition to what Apple calls “critical bug fixes,” the update adds support for the ATI-Radeon HD 5870 graphics card, Apple’s USB Ethernet Adapter, and the MacBook Air SuperDrive. The update requires a copy of Windows and Mac OS X 10.6 Snow Leopard. (Free, 280.28 MB for 32-bit, 121.25 MB for 64-bit)