yes this is a topic near and dear to my heart.
I found the book Vaccinations: A Thoughtful Parent's Guide by Aviva Jill Romm to be a well balanced read and truly leaving the decision up to the parent. Once I realized she also wrote a book on treating children using natural remedies I snatched that one up and it's now my go to reference for a lot of things. It's called Naturally Healthy Babies and Children.
I've heard good things about the Sears book but did read that he leans a bit towards the pro side. Nothing wrong with that just something to be aware of. Also I've heard the Stephanie Cave book mentioned often and a book that's out of print but my friend picked up at a library book sale - How to Raise A Healthy Child In Spite of Your Doctor. She said despite it being an older book it had lots of good information.