I know when you posted this you assumed you would get some strong responses on both sides.
I just read somewhere (I can't remember if it was a magazine, the internet, etc. since I currently have 'mommy brain'). Anyway the article said in short that the 'choice' to immunize is made possible by the fact that most children ARE immunized and therefor those children who do not carry the antibodies are less likely to get the diseases we immunize against, since those children who are immunized do not become sick and pass it on. Since we don't see Measles nearly as often as previous generations, we are under the assumption that it is not necessary. The fact is, there are some illnesses we vaccinate against that are still reported to the CDC. If you feel you may want to weigh your options, make sure you are completely informed on both sides. Check out the CDC website (link here: http://www.cdc.gov/vaccines/spec-grps/parents.htm ) and decide for yourself.
How many times have you watched the news and in their health report on Monday they say 'oh new studies indicate dark chocolate will help prevent heart disease' and then on Thursday they say 'new studies say dark chocolate is directly related to increase in cholesterol levels' (just an example - i dont know if either statement is true - but you get my point). So which is it? is dark chocolate good for you or bad for you? I hate to say it, but we need to arm ourselves with quality information and do research on our own, from credible sources to really get the best information to make these tough decisions.
I immunize, and will always immunize, and while there are children who have reactions to immunizations, there are more who do not. I mean put it into perspective... how many kids do you hear about who have extreme reactions to peanut butter? they haven't pulled that from the shelves.
I also asked my doctor recently what she could tell me about the link to autism and immunizations. She said that there was a girl who was diagnosed with autism after receiving immunizations, however, there are two factors involved - 1) she had an existing condition that already made it possible to have autism, whether immunized or not and 2) she recieved 9 immunizations in ONE visit in an attempt to make up missed shots. She said in short, there is no conclusive evidence that vaccines are linked to autism, and at this point the benefit far outweighs the risks.
consider it this way... people are prescribed medications that are helping them live longer lives, or more productive lives, and they carry side effects. I take a medication for post partum depression, and there is a risk that it could cause seizures, but the benefit to me (and my family) is far greater.
Good luck with whatever you choose, but I hope you'll decide what's best based on credible info.
EDIT NOTE: after coming back and reading some of these replies, I am honestly a bit scared that there are so many seriously misinformed truths out there. Deductive reasoning tells me, the more people rely on the herd immunity method, the less effective it's going to be. I know my pre-teen is due for some boosters, but I plan to have her blood tested for immunities and make sure she is absolutely current on all immunizations.