Just got my copy of Programming Windows Presentation Foundation by Chris Sells and Ian Griffiths. I still didn't get to read all the chapters but a quick run through the book really impressed me.
When Avalon CTPs were released i installed it and wanted to try it out. But it was difficult getting the resources to try out some programming using XAML and WPF.
Finally i think i can use this book as a guide in trying out some sample programs with WPF and i will post more on this book and things i try out in WPF in the future.