You know what, if you're serious about educating yourself on this topic you should read this:
http://www.slate.com/id/2123647/
It's an unbiased and scientific view of the data, and one that I find extremely convincing. There is no real evidence linking autism and vaccinations and what little evidence is claimed is extremely suspect. Probably the biggest one is that the increase in autism rates started in the early 80s but mandatory MMR vaccinations actually started a full decade prior. Also several European countries stopped using MMR vaccinations in 1992 and it had no impact in their increasing rate of reported autism cases.