I have the following:

Linear Algebra (Levandosky)
A first course in probability (Ross)
Single variable calculus (James Stewart)
Principles of Economics: Global Financial Crisis Edition (Taylor)
Microeconomics (Besanko and Braeutigam)
Introduction to Econometrics (Stock and Watson)
Public Finance (Rosen and Gayer)

Prices negotiable and certainly less than the bookstore for all of them