  We consider two classes of t-b-tau quasi-Yukawa unification scenarios which
can arise from realistic supersymmetric SO(10) and SU(4)_C X SU(2)_L X SU(2)_R
models. We show that these scenarios can be successfully implemented in the
CMSSM and NUHM1 frameworks, and yields a variety of sparticle spectra with WMAP
compatible neutralino dark matter. In NUHM1 we find bino-higgsino dark matter
as well as the stau coannihilation and A-funnel solutions. The CMSSM case
yields the stau coannihilation and A-funnel solutions. The gluino and squark
masses are found to lie in the TeV range.
