Book and Buttons

First of all, Hi @all

two days ago i ve started with expression blend 3 (wpf).
i have to work on a project, now i am trying to get deep into blend 3 (making a gui)
my c# experience = basics (i know a bit about classes, havent used them much but i think that handling them wont be a big problem).

i am reading all the tuts here, but is there a good book to get quick into blend 3?
my focus is on gui design and i would like to know how data binding / datatemplates (ive read its the most powerfull thing in wpf(blend3) to use.)

sry for the wall of text and my bad english

my 2nd question is, i am working with buttons (style…) but my created buttons for example once clicked, are changing their colors , i only want 2 colors (not clicked blue / clicked red) (dont flame the colors, its only for testing).