We present phase-resloved(~0.1 phase intervals) cyclotron spectrocopy of four polars(AN UMa, EF Eri, VV Pup, and EQ Cet) obtained with SPEX on the IRTF. SPEX covers the I, J, H, and K bands simultaneously allowing for great wavelength coverage of all the observed systems. For each object, Constant- Lambda models were run to compute model cyclotron spectra which were fit to the data observed by altering four parameters: B, the magnetic field strength, T, the global temperature of the plasma in the accretion region, Lambda, the "size parameter" of the accretion column, and Theta, the viewing angle. In general, we find the fits to be satisfactory, although the high temperatures in EQ Cet(14.5 Kev) and EF Eri(~20 Kev) are a concern. To allow for more physical setup in the accretion regions in question, we will soon transition to a structured-shock code based on Fischer and Beuermann (2001), which allows the effects of variable mass accretion and magnetic fields to be included.