  The calculation of the point vortex velocity probability distribution
function (vvpdf) is extended to a larger class of systems beyond the
nonconserved TDGL model treated earlier. The range is extended to include
certain anisotropic models and the conserved order parameter case. The vvpdf
still satisfies scaling with large velocity tails as for the nonconserved
isotropic case. It is shown that the average vortex speed can be
self-consistently expressed in terms of correlation functions associated with a
Gaussian auxiliary field. In the conserved order parameter case the average
vortex speed decays as $t^{-1}$ compared to the $t^{-1/2}$ decay for the
nonconserved case.
