Last Fall I bought Agile Web Development with Rails (<a href="http://pragprog.com/titles/rails3/agile-web-development-with-rails-third-edition" rel="nofollow">http://pragprog.com/titles/rails3/agile-web-development-with...</a>) and found it to be very helpful in transitioning from .Net to Rails.  Based on how you describe your experience, you would do fine with this book.<p>There are a few more basic books, however, I didn't want to read 500 pages just to learn how to build a blog.<p>I also recommend watching some of the Peep Code videos as they go more into depth on specific topics.