http://www.kymythy.com/ Kymythy shulz would be my recomendation.
Google Books is good for previewing books (some times it has the whole book, so you dont even have to go out and buy it!)
http://books.google.com/books?id=tEsoP6-T1tAC&pg=PA36&dq=feeding+raw Has excerpts from Pitcairn, for example.
Billingshurst seems to be the foundation for most, but I'd say Kymythy Shulz is more more 'digestible' for the new reader.
Hope this helps :)
(IMO... there is NO subsitute for getting a
good mentor, preferably in your breed)