I'd be curious for opinions out there regarding available textbooks for "Modern Physics". Typically this is a sophomore-level undergraduate course at places that offer such a class. Often these tend to focus on special relativity and "baby quantum", making the bulk of "modern" end in approximately 1930. Ideally it would be great to have a book that includes topics from the latter half of the 20th century, too, without having them be too simplistic. Looking around on amazon, there are a number of choices, but I wonder if I'm missing some diamond in the rough out there by not necessarily using the right search terms, or perhaps there is a new book in development of which I am unaware. The book by Rohlf looks interesting, but the price tag is shocking - a trait shared by many similarly titled works on amazon. Any suggestions?