For those of you interested in Rails Development, we recently purchased a copy of The Rails Way by Obie Fernandez. It is the best rails book I have read bar none.
Don't get me wrong, the Pragmatic books are excellent too but The Rails Way takes it to a whole new level, going in to the detail you will need as you try to progress beyond the basics of rails.
I've been doing rails sites for one and a half years now and I am still learning stuff thanks to this book. It even has a forward by DHH (He hates that apparently, but it sounds too familiar to call him David as he prefers.)