 - All stem cell products infused on this protocol must meet the following criteria for tumor analysis: No tumor cells detectable by immunocytology OR for patients who had a PBSC collection done previously and no immunocytological testing was done on the product at the time of collection: This product may be used for infusion on this study if the patients bilateral bone marrow aspirate and biopsy specimens can be shown to be tumor free by standard histology within 4 weeks of PBSC collection 