I've been using Visual Studio 2008 from few months.. Its really a great improvement over productivity.. I love new features and speedy IDE. Service Pack 1 for Visual Studio 2008 contains not only bug fixes but also lots of new features! Along with .NET Framework 3.5 SP1 beta, VS2008 SP1 beta has been released few days ago. I just installed it on all my machines!
If you want to download it, refer to following links,
After you install it, following may be few useful links,