Inclusion Criteria:

Patients with AML, ALL, CML, CLL, myelodysplastic syndrome (MDS), NHL, Hodgkin's disease
(HD), or myeloma, who are at significantly higher than usual risk for mortality from
conventional myeloablative allogeneic SCT due to age or comorbidities:

- Age ³ 50 years with AML or ALL in complete remission or with <10% blasts in bone
marrow

- Age ³ 50 years with MDS or CML.

- Age > 50 years with lymphomas or myeloma, who have failed chemotherapy and are not
candidates for an autologous transplant, or who have failed a prior autologous SCT.

- Patients of any age with CLL or low-grade NHL. Patients with CLL and low-grade NHL
need to have failed at least first-line treatment, with an alkylating agent,
fludarabine or 2-chlorodeoxyadenosine (2-CDA), or anti-CD20 monoclonal antibody
rituximab.

2. Patients with hematological malignancy relapsed after prior autologous
transplantation.

3. Patients at high-risk (>60%) of relapsing after autologous transplantation for
hematological malignancies may receive allogeneic transplant as "consolidative
immunotherapy". Diagnoses include multiple myeloma, non-Hodgkin's lymphoma, Hodgkin's
lymphoma, AML, ALL and MDS. Minimal duration between autologous and allogeneic
transplants is 4 weeks. 4. Patients of any age with hematologic malignancies
treatable by allogeneic SCT, who, because of pre-existing medical conditions, are
considered to be at significantly increased risk for transplant toxicity using
high-dose transplant regimens. 5. Patients with metastatic renal cell carcinoma.
Must have include good performance status (Karnofsky score > 60%), no active brain
metastases, life expectancy > 6 months, absence of bulky liver metastases. Patients
will be treated on other active disease-specific protocols when available. 6.
Patients with other malignant diseases treatable with allogeneic SCT may be eligible
for this protocol on a case by case basis, if approved by the principal investigator
and the BMT attending physicians group. 7. Available HLA-identical sibling donor, or
a phenotypically HLA-matched family member. 8. Age < 70 years.

Exclusion Criteria:

1. Patients with hematological malignancies eligible for a curative autologous SCT:
intermediate- or high-grade NHL with chemo-sensitive first relapse. HD with
chemo-sensitive first relapse.

2. Age <50 years and eligible for a conventional myeloablative allogeneic SCT.

3. Patients with rapidly progressive intermediate or high- grade NHL, unless in minimal
disease state.

4. Patients with active uncontrolled CNS involvement with malignancy.

5. Fertile men or women unwilling to use contraceptive techniques during and for 12
months following treatment.

6. Females who are pregnant.

7. Patients who are HIV positive

8. Organ dysfunction

1. Left ventricle ejection fraction < 35%.

2. DLCO <35% of predicted, or receiving continuous supplementary oxygen.

3. Liver function tests: total bilirubin >2x the upper limit of normal, and/or
transaminases >4x the upper limit of normal.

4. Karnofsky score <50 for patients < 60 years, or <70 for patients aged 60 - 69
years (see appendix B).

5. Creatinine clearance < 60 ml/min.

6. Patients with hypertension that is poorly controlled on antihypertensive
therapy.