One of my collegue has just shipped the second edition of his book on Windows 7.

I really recommand you to read it ;-).

It is available at http://www.amazon.fr/Windows-7-avanc%C3%A9-Thomas-Garcia/dp/2212129955/ref=sr_1_2?ie=UTF8&s=books&qid=1299059442&sr=8-2

You can also follow him at on his blog http://blogs.msdn.com/b/lgmorand/