Working within the framework of the minimal supergravity (mSUGRA) model, we show regions of model parameter space which lead to cosmologically interesting values of the neutralino relic density Ωh 2 . In these regions, we also show expected event rates for direct detection of neutralinos by a Germanium detector. We compare the direct dark matter detection event rates with expected decay rates for b->sγ. We also compare neutralino direct detection rates with the reach of various colliding beam experiments for mSUGRA. We present results for both small and large values of the parameter tan β.