Extending the Higgs sector of the MSSM by the addition of a gauge singlet
scalar field can remedy the mu problem. We explore the implications of extended
models for both the spectrum of the neutralinos and the cascade decays of the
neutralinos and charginos. Extra steps due to light decoupled neutralinos in
the cascade decays of both neutralinos and charginos allow an excess of
trilepton events compared to the MSSM and the existence of events with higher
lepton multiplicity. Additionally, displaced vertices of the chi_2^0 due to
small decay widths in some models may be observable.Comment: v1: 19 pages, 6 figures. v2: PLB versio