Visual Studio 2010 Express Editions are released to the web! What is even better is they are free! There are currently 4 Visual Studio editions.
- Visual Basic 2010
- Visual C# 2010
- Visual C++ 2010
- Visual Web Developer 2010
You can start downloading at https://www.microsoft.com/express/Downloads/
Visual Studio 2010 Express for Windows Phone however is still CTP.