Peter,

   I like the "Programming WPF" book by Chris Sells and Ian Griffiths:

http://www.amazon.com/Programming-WPF-Chris-Sells/dp/0596510373

   There is also the Petzold book "Applications = Code + Markup":

http://www.amazon.com/Applications-Code-Markup-Presentation-Foundation/dp/0735619573

I've got two excellent books on it:

Windows Presentation Foundation Unleashed by Adam Nathan

and

Essential Windows Presentation Foundation by Chris Anderson

Windows Presentation Foundation Unleashed

http://www.amazon.com/Windows-Presentation-Foundation-Unleashed-WPF/dp/067232891
7/ref=pd_bbs_sr_1?ie=UTF8&s=books&qid=1195680056&sr=1-1

I hate titles that include words like "unleashed" but the book is good (the
code is in C# ... and XAML)

Personally, I could care less about WPF right now, preferring to focus on
WCF, LINQ, and related issues and getting to WPF (and Silverlight) when I
really have the opportunity to be required to do so. But, having read Adam
Nathan's book (in color -- nice) I'd concur that it's really good.
---Peter
"Inside every large program, there is a small program trying to get out."
http://www.eggheadcafe.com
http://petesbloggerama.blogspot.com
http://www.blogmetafinder.com

I'm going to go for "Windows Presentation Foundation Unleashed (WPF)
(Unleashed) (Paperback)".  Thanks everyone!

Pete