We describe the features of supersymmetric spectra, alternative to and
qualitatively different from that of most versions of the MSSM. The spectra are
motivated by extensions of the MSSM with an extra U(1)' gauge symmetry,
expected in many grand unified and superstring models, which provide a
plausible solution to the mu problem, both for models with supergravity and for
gauge-mediated supersymmetry breaking. Typically, many or all of the squarks
are rather heavy (larger than one TeV), especially for the first two families,
as are the sleptons in the supergravity models. However, there is a richer
spectrum of Higgs particles, neutralinos, and (possibly) charginos. Concrete
examples of such spectra are presented, and the phenomenological implications
are briefly discussed.Comment: 12 pages, LaTe
