  In gauge-mediated SUSY breaking models, messengers transmit SUSY breaking
from a partially hidden sector to the standard model sector via common standard
model gauge interactions. The minimal set of messengers has quantum numbers of
a $5 + \bar 5$ of SU(5); identical to the quantum numbers of the minimal Higgs
sector of an SU(5) GUT. We show in a simple model with messenger masses of
order the GUT scale that Higgs - messenger mixing quite naturally leads to a
low energy MSSM with gluinos as the lightest supersymmetric particles [LSP]. We
study the phenomenological consequences of such a model.
