Homeschooling for kids on the autism spectrum comes up as a topic here fairly frequently. I just found this website. However, if you are thinking of homeschooling, you should know that IDEA 2004 does not protect your child's right to special education interventions. YOu will have to pay for therapies yourself unless your state has other laws in place that allow privately educated kids access to IEP provisions. Check your state law.
http://home.earthlink.net/~tammyglaser798/authome.html