Wooohooo!! Get 'em here!
Combined Visual Studio 2008 Service Pack 1 and .NET Framework 3.5 Service Pack 1
The update for Visual Studio 2008 SP1 and .NET Framework 3.5 Service Pack 1 in a single install.
.NET Framework 3.5 Service Pack 1
The update for just the .NET 3.5 Service Pack 1, it does not include updates for Visual Studio 2008.
Disclaimer The opinions expressed herein are my own personal opinions and do not represent my employer's view in any way.