Well-Grounded Rubyist

all good rec's. Some others, all well-reviewed on amazon and assuming you have a team of java /C, C++, C# / PHP, python or some kind of web app coders - Well-Grounded Rubyist by David A. Black (infinite number stars!) - the 2 Wrox books, Professional Rails (Rappin), Art of (Benson) - Advanced rails (Oreilly, Ediger); The one i'd stear clear of, i don't remember who wrote it, but it has a picture of an ocean wave on the cover.