M.L.
I'm not too familiar with that area, but some great forums to check with are: joining the Papaya Patch yahoo group, and families for natural living. The moms involved are very knowledgable and they are both great communities to be part of if you're looking for similar minded parents out there.
Also, I see someone else wasn't supporting your decision. We too, did not immunize our now - very healthy almost 3 year old, nor will we immunize our newborn due in May.
Just be educated and stand by your convictions. We went through 2 pediatricians before finding one that supported us and treated us like "smart" educated parents.
Perhaps look into finding a D.O. (doctor of osteopathic medicine) - same as a M.D., but trained in a holistic foundation of looking at the whole person.
Good Luck.