RATIONALE: Drugs used in chemotherapy work in different ways to stop the growth of cancer cells, either by killing the cells or by stopping them from dividing. Giving more than one drug (combination chemotherapy) may kill more cancer cells. Radiation therapy uses high-energy x-rays to kill cancer cells. Giving combination chemotherapy and radiation therapy with an autologous stem cell transplant, using peripheral stem cells or bone marrow from the patient, may allow more chemotherapy to be given so that more cancer cells are killed. Giving combination chemotherapy together with radiation therapy before an autologous stem cell transplant may be an effective treatment for Hodgkin's lymphoma.