Do you like to get your hands on the latest and greatest?
Microsoft is posting a beta of its next generation Windows OS later today at the Windows 7 Web page.
If you are interested in a free Open Source Development Environment for .NET check out #develop (pronounced SharpDevelop). It supports C#. VB.NET and Boo.
Currently it only does .NET 1.1 and 2.0, but they are working on support for .NET 3.5, which will also add IronPython and F#.