 - Disease Status: NHL, HD, MM that are chemorefractory or relapsed; CLL that is Rai stage III or IV, or lymphocyte doubling time of 6 months, or stage III resistant to 2 cycles of chemotherapy regimens; CML in accelerated or blast phase; MDS with life-threatening cytopenias; patients who have had a previous autologous or allogeneic bone marrow or stem cell transplant; other hematological disorders where allogeneic transplant is appropriate and the risk of conventional transplantation is considered to be unacceptably high. 