Inclusion Criteria:

Patients will be eligible for this study if they have any one of the diseases that are
known to be cured after allogeneic stem cell transplantation.

1. Relapsed or refractory acute leukemia (myeloid or lymphoid)

2. Acute leukemia in first remission at high-risk for recurrence

3. Chronic myelogenous leukemia in accelerated phase or blast-crisis

4. Chronic myelogenous leukemia in chronic phase

5. Recurrent or refractory malignant lymphoma or Hodgkin lymphoma

6. Chronic lymphocytic leukemia, relapsed or with poor prognostic features

7. Multiple myeloma

8. Myelodysplastic syndrome

9. Chronic myeloproliferative disease

10. Hemoglobinopathies

11. Aplastic anemia

Exclusion Criteria:

1. Zubrod performance status > 2

2. Life expectancy is severely limited by concomitant illness

3. Patients with severely decreased LVEF or impaired pulmonary function tests(PFT's)

4. Estimated Creatinine Clearance <50 ml/min

5. Serum bilirubin> 2.0 mg/dl or SGPT >3 x upper limit of normal

6. Evidence of chronic active hepatitis or cirrhosis

7. HIV-positive

8. Patient is pregnant

9. Patient or guardian not able to sign informed consent