The official launch is still November 7th, but Visual Studio 2005 is available for download starting today. This includes Visual Studio 2005 Team Suite, the role-based editions, and Visual Studio 2005 Team Test Load Agent. We're also releasing a Beta 3 Refresh of Team Foundation Server (later today). Of course, the downloads are for those with the appropriate MSDN Subscription; otherwise, you'll be able to download a trial version of Visual Studio 2005 Team Suite.
Update: Transitioning your MSDN Subscription? See this post.