  Galaxy clusters are important targets for peculiar velocity studies as a
direct comparison of the various distance indicators can be made. The potential
problem of an environmental effect biasing the distances to clusters of
different richness is examined. The level of intrinsic cluster-to-cluster
variations is also reviewed. We investigate the claim that the derived
Fundamental Plane (FP) distances vary systematically with FP scatter. The
cluster distances and peculiar velocities derived from Tully-Fisher, FP and
Brightest Cluster Galaxies are compared and we find good agreement.
