  Weakly Interacting Massive Particle (WIMP) direct detection experiments are
closing in on the region of parameter space where neutralinos may constitute
the Galactic halo dark matter. Numerical simulations and observations of galaxy
halos indicate that the standard Maxwellian halo model is likely to be a poor
approximation to the dark matter distribution. We examine how halo models with
triaxiality and/or velocity anisotropy affect exclusion limits, before
discussing the consequences of the possible survival of small scale clumps.
