We consider N = 1 supersymmetric gauge theories with a simple classical gauge group, one adjoint Φ, N f pairs (Q i , Q i ) of (fundamental, anti-fundamental) and a tree-level superpotential with terms of the Landau-Ginzburg form Q i Φ l Q j . The quantum moduli space of these models includes a Coulomb branch. We find hyper-elliptic curves that encode the low energy effective gauge coupling for the groups SO(N c ) and USP(N c ) (the corresponding curve for SU(N c ) is already known). As a consistency check, we derive the sub-space of some vacua with massless dyons via confining phase superpotentials. We also discuss the existence and nature of the non-trivial superconformal points appearing when singularities merge in the Coulomb branch.