A physician acquaintance of mine was diagnosed with very bad lung cancer a few years back and investigated everything he could find regarding cancer. He is still with us and doesn't look bad. Anyway, I asked him what he does and he said that he takes "Super Green Tea Extract" capsules from the Life Extension Foundation.(lef.org). He said that since the capsules are so concentrated, you get much more benefit than you can ever get from just drinking green tea.
I don't know if it works, but I have been taking about four of them every day.
Best of luck Jay,
Danny G.