  We review the results of an extensive investigation of photoemission spectral
weight using electronic models for the high-Tc superconductors. Here we show
that some recently reported unusual features of the cuprates namely the
presence of (i) flat bands, (ii) small quasiparticle bandwidths, and (iii)
antiferromagnetically induced weight, have all a natural explanation within the
context of holes moving in the presence of robust antiferromagnetic
correlations. Introducing interactions among the hole carriers, a model is
constructed which has ${\rm d_{x^2 - y^2}}$ superconductivity, an optimal
doping of $\sim 15\%$ (caused by the presence of a large density of states at
the top of the valence band), and a critical temperature $\sim 100K$.
