I recently polled a small subset of the planetary community and recieved these book recommendations. Please add your favorites and comments about individual books.
The New Solar System
by J. Kelly Beatty (Editor), Carolyn Collins Petersen (Editor), Andrew Chaikin (Editor), Andrew L. Chaikin (Author)
The Solar System: The Cosmic Perspective
by Jeffrey Bennett, Megan Donahue, Nicholas Schneider, Mark Voit
Worlds Apart: A Textbook in Planetary Sciences
by Guy Consolmagno, Martha Schaefer
Planetary Sciences
by Imke de Pater, Jack J. Lissauer
Physics and Chemistry of the Solar System
by John S. Lewis
Astrobiology: A Multi-Disciplinary Approach
by Jonathan Lunine