Any good published rails 3 books?

Hi, I’m looking for a good books for rails3 that are available now,
unfortunately “Agile Web D. with Rails” and “The Rails 3 Way”
books will be released not before end of January/end of december.
Any idea ? thanks.

If you by the agile book at pragmatic programmer you will get access to
beta version but is like UD$20 more than amazon.