Today, Microsoft announced the availability of Visual Studio 3.5 SP1 and .NET 3.5 SP1.  Those of you following the development of these releases know that it's much more than your average service pack though, as it introduces the ADO.NET Entity Framework, ASP.NET Dynamic Data, ADO.NET Data Services, a streamlined .NET client profile, improved WPF performance and support in the IDE, Team Foundation Server improvements, and much more.

P.S., now it's ok to install SQL Server 2008 too <g>.