Doug,
I did some research and am sure found what you did. I do know that some of the centers in Mexico have been profiled and there does not seem to be research to back up their clams. There are without a doubt many who try to sell hope as their only real product. They are in Mexico because they do not have to worry about US regulation that would shut them down here.
I have heard more about the cancer treatment done in Germany many of the US notables in recent years have tried them some claims of success. But again there is little to back them up as far as research.
The old maxim of nothing ventured nothing gained has to be part of where you are coming from and it is understandable. I am sure that you are trying to do due diligence to obtain the best shot. Please let us know what you decide and keep us updated as you are breaking new ground and we will be interested in your journey.
Below are four links that may be of interest to you the third was a forum that was posting about the Oasis of Hope and the next is a site called Quack Watch.
You are in my thoughts
From the American Cancer Society
Questionable Cancer Practices in Mexico
www.cancer.org/docroot/ETO/content/ETO_5_3x_Questionable_Practices_In_Tijuana.asp?sitearea=ETO
From the American Cancer Society
Non Traditional Pharmacological and Biological Treatment
www.cancer.org/docroot/ETO/ETO_5_2_4.asp?sitearea=ETO
The Cancer Forum 2007
www.cancerforums.net/about5545.html
Quack Watch
www.quackwatch.com/00AboutQuackwatch/altseek.html