I've been attending the UK launch of Windows Server 2008, SQL Server 2008 and Visual Studio 2008 at the ICC in Birmingham today. It was a stunning event and I'm sure lots of commentary will follow in various blogs.
Anyhow, if you didn't manage to attend the event you can watch entire launch events from around the world, including the main USA launch with Steve Balmer here. I watched the keynote from the main launch in LA and found Steve's talk very interesting. I would recommend the use of time to you as it will help you understand what Microsoft's strategy is, and how these technologies can help you deliver against your business's requirements.