The title says it all...I'm looking for a comprehensive, in depth book for an introductory/intermediate undergraduate course on Modern Algebra. I've got Fraleigh's "A First Course in Abstract Algebra" and Warner's "Modern Algebra." But Fraleigh's book is my text for this Fall's course and Warner's covers a bit too much and doesn't go as in depth on the topics I need. Also: budget is low, so the less expensive the better. Thanks.