Math 51:               Linear Algebra (Levandosky)       - $49                                 bookstore: $71.50/ 95.25

Physics 19, 21:             Physics (Giancoli 6th)               - $105                        bookstore: $168.75/ $223.75
 
Chem 35/ 131:      Organic Chemistry (Vollhardt, 5th)           - $62                 bookstore: $166.5
 
Chem 31A:             Chemistry Structure & Dynamics: Spencer) $100            bookstore: $176.25
 
Chem 31x:             Chemistry: Science of Change (Oxtoby, 4th): $105         bookstore: $173.25
 
Econ 1A:                Economics (Taylor, 6th)                    -  $70                    bookstore: $194.75/ 259.50
                                 (Not "world crisis edition," but identical;
                                 you can check it out beforehand)

Econ 50:                  Microeconomics (Besanko 2nd Edition)      -  $30                        bookstore: $156/ 207.75

CS 106A:                  Art & Science of Java (Roberts)  - $78                                            bookstore: $91.50/ 121.75