Stats 110:           Statistics for engineers and the sciences  
                               (Mendenhall/Cincich, 5th)                                - $ 50   bookstore: $65.25/ 89.50

MS&E 120/ CS 109:  A first course in probability  (Sheldon Ross,  8th)   - $88    bookstore: 110.50/ 147.25
 
Econ 50:                  Microeconomics (Besanko 2nd Edition)      -  $30   bookstore: $156/ 207.75
 
PRS Transmitter:    Interwrite PRS (newest one, new batteries)              -  $31 bookstore: $40.50/ 53.75

Engr 14:                  Engineering Mechanics Statics
. (Hibbeler 12th) 2 book set   -  $40     bookstore: ?