 All patients receive a first induction therapy comprising gemcitabine IV on days 1, 8, and 15 and oral capecitabine twice daily on days 1-21. Treatment repeats every 28 days for 3 courses in the absence of disease progression or unacceptable toxicity. Following the first induction therapy, patients with a WHO performance status of 0-1 who are responding or have stable disease that can be encompassed within a radically treatable radiotherapy volume are randomized to 1 of 2 treatment arms. 