R.M.
This is one of those hot topics, so you'll get a million responses. There are plenty of such discussions in the Mamasource archives. The studies have pretty much shown that vaccinations are NOT the cause of autism, but for some reason people keep wanting to think they are. I don't know why people would want to think something they did caused their child's autism. That would be a terrible burden to bear.
I think vaccines are good. People live much longer now than they did a century ago, due in large part to vaccines. There is an extremely small risk of adverse reactions to vaccines, but usually the benefit outweighs the risks.
Now everyone will tell you why not to vaccinate your child.
Note: I just had all of my children vaccinated against the killer meningitis, and now I can send them off to high school and college without worry.