It has been forever since I actually sat down to code with a physical copy of some programming text. The book to buck the trend for me is Agile Web Development with Rails, which covers Ruby on Rails 1.2. The second edition came out in December and was a tad over $26 on Amazon when I bought it. That made it an easy decision, and now I don't have to minimize my text editing windows just to read some documentation, which only speeds the development process further ;)