Eli, I had a quick look on Google and also in our own archives for relevant material. Hope some of this is useful:
Dance therapy comforts body, mind and spirit
by Andrea Nobile, Macomb Daily http://www.bridges4kids.org/articles/9-02/Macomb9-3-02.html
Th American Dance Therapy Association (ADTA) may be able to point you in ueful directions: http://www.adta.org/whoweare.html
We have also had some discussions on this theme here on CriticalDance. One of our posters, Citibob, has Asperger's syndrome and has some interesting thing to say on these issues: Ballet and autism
Also, one of the teachers who post here shared her experiences: autistic dancers in recital...
I'm not a dance teacher, but from what I have read, my impression is that it is more likely your daughter would start in a general movement class and move on to ballet at a later stage.
Over to the experts.
<small>[ 09 April 2005, 07:24 AM: Message edited by: Stuart Sweeney ]</small>