I think this is very similar to our situation. I agree that homeschooling would probably solve some of our issues, but it may also cause other issues since DD9 really does need the socialization. That being said - I would really like to keep DD in public school, but don't think she is getting the right mix of accommodations. IMO (but I could be wrong), I think this is causing her to have behavior issues and be extremely apathetic to school in general. I recently posted under the Parenting/Advocacy Forum about all this asking what we should be doing differenly.
What supplemental things are you (psteinx & CCN)doing?
I've been looking a lot on the Hoagies site lately and been taking notes on curriculum compacting, subject acceleration, and differentiation since these options (or a combination of these options) seem to be something that could be helpful to DD. I'm hoping to make some GIEP suggestions for next school year, but as you mentioned I understand that the school can only go so far.
psteinx - sounds like you have a school that at least is willing to make some accommodations, hopefully they will be willing to make some more/different ones.
CNN - you are spot on with the fast, concise, without EXCESSIVE repetition - that is torture to these kids!