7. Study treatment. Prior to the administration of the study treatment, subjects will have a double lumen PICC line placed for the administration of chemotherapy, IV fluids, blood products and the withdrawal of blood samples. The placement of a central catheter is a routine medical procedure. Subjects will then undergo conditioning which will include 4 days of intravenous fludarabine and 4 days of cyclophosphamide and 2 days of CAMPATH-1H. All drugs are FDA approved drugs. The previously collected allogeneic peripheral blood stem cells will be reinfused following the completion of the conditioning regimen.