1. Hepatocellular carcinoma (as defined by biopsy or alpha-fetoprotein (AFP) greater than 1000ng/dL with appropriate imaging) or liver metastases from colorectal cancer or other tumor (as defined by biopsy or elevated CEA or a positive PET scan in conjunction with a mass on CT or MRI in a patient with previously resected cancer). Patients with at least one measurable liver lesion and no more than 3 are eligible if they meet all other eligibility criteria including the dose constraints on the composite plan.