Patients whose life expectancy is limited by illness other than their neurological condition Life expectancy is not severely limited by concomitant illness in the opinion of the treating investigator Life expectancy severely limited by disease other than malignancy Patients with a life expectancy (=< weeks) limited by diseases other than leukemia Patients whose life expectancy is severely limited by illness other than CD Patients whose life expectancy is limited by diseases other than their malignancy With life expectancy severely limited by diseases other than malignancy Life expectancy severely limited by diseases other than malignancy Life expectancy severely limited by concomitant illness or uncontrolled infection EXCLUSION CRITERIA FOR TRANSPLANT PHASE: Life expectancy severely limited by concomitant illness or uncontrolled infection Life expectancy severely limited by diseases other than malignancy Life expectancy severely limited by disease other than lymphoma Patients whose life expectancy is severely limited by illness other than autoimmune disease