  We present a Glauber-based study of J/Psi and Drell-Yan yields in
nucleus-nucleus collisions. Using this approach, we have investigated the
impact of energy loss by the colliding nuclei on observed yields and transverse
momentum spectra of J/Psi and Drell-Yan. These studies permit an assessment of
the importance of initial state energy loss in relation to "anomalous" J/Psi
suppression.
