You're right about not trusting corp's to do anything but make money. And don't be so sure about those vaccines being mercury free:
http://www.whale.to/a/mercury7.html

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During an investigation into the mercury issue, HAPI learned that
Thimerosal, a 50% mercury compound, is still being used to produce
most vaccines and that the manufacturers are simply "filtering it
out" of the final product. However, according to Boyd Haley, PhD,
Chemistry Department Chair, University of Kentucky, mercury binds to
the antigenic protein in the vaccine and cannot be completely, 100%
filtered out.

All four vaccine vials tested contained mercury despite manufacturer
claims that two of the vials were completely mercury free. All four
vials also contained aluminum, one nine times more than the other
three, which tremendously enhances the toxicity of mercury causing
neuronal death in the brain.

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Autism Rates Drop After Mercury Removed From Childhood Vaccines
Mar 3rd, 2006

http://www.medicalnewstoday.com/articles/38784.php

An article in the March 10, 2006 issue of the Journal of American Physicians and Surgeons shows that since mercury was removed from childhood vaccines, the alarming increase in reported rates of autism and other neurological disorders (NDs) in children not only stopped, but actually dropped sharply - by as much as 35%.

Using the government's own databases, independent researchers analyzed reports of childhood NDs, including autism, before and after removal of mercury-based preservatives. Authors David A. Geier, B.A. and Mark R. Geier, M.D., Ph.D. analyze data from the CDC's Vaccine Adverse Event Reporting System (VAERS) and the California Department of Developmental Services (CDDS) in "Early Downward Trends in Neurodevelopmental Disorders Following Removal of Thimerosal-Containing Vaccines."

The numbers from California show that reported autism rates hit a high of 800 in May 2003. If that trend had continued, the reports would have skyrocketed to more than 1000 by the beginning of 2006. But in fact, the Geiers report that the number actually went down to only 620, a real decrease of 22%, and a decrease from the projections of 35%.

This analysis directly contradicts 2004 recommendations of the Institute of Medicine which examined vaccine safety data from the National Immunization Program (NIP) of the CDC.

Google amish autism. There are a few Amish with autism. They have either been vaccinated or have elevated levels of mercury presumably from an environmental exposure. I am not against vaccination but facts like these carry more weight than "scientific" studies that are funded or at least influenced by drug companies. The difference is Science for profit vs Science for knowledge.