There are many issues that face orthodox parents of special needs children. One of the most difficult ones is keeping them properly supervised in single sex groups or highly supervised groups to maintain tznius. To quote one parent, the hormones kick in but the brain cells dont.
A very good resource is on Aish.com in the mp3 library. There are many lectures from a group called Shelanu about dealing with special needs children. My personal favorites are the ones by Rebbetzin Heller and Kalmonovitz and Rabbi Zev Leff.