Now you have the software, the next step is to get your hands dirty. So here is a list of resources that you can use to start learning how to use it and do magic with the software you've just got.
Coding4fun
http://blogs.msdn.com/coding4fun/
Expression
http://www.microsoft.com/expression/kc/default.aspx
Beginner Developer Learning Resources
http://msdn2.microsoft.com/en-us/beginner/default.aspx
MSDN Technical Forums
http://forums.microsoft.com/MSDN/
CodePlex
http://www.codeplex.com/
Channel 9 Screencasts:
http://channel9.msdn.com/showforum.aspx?forumid=38
MSDN webcast
http://msdn2.microsoft.com/en-us/events/aa740361.aspx
How do I? (Visual Studio)
http://msdn2.microsoft.com/en-us/vs2008/bb507746.aspx?wt.slv=topsectionsee
More coming soon.. keep checking back and add your favorites
