Treatment with FDA-approved and/or expanded access antiretroviral agent(s) for patients with baseline CD4 counts below 500 cells/mm3. Patients with baseline CD4 counts above 500 cells/mm3 are eligible to receive cell therapy on this protocol, but must be treated with antiretroviral therapy if evidence of significant and persistent viral activation occurs in association with a cell infusion (a 50 percent or greater increase above baseline in any virologic parameter for at least 2 consecutive weeks).