I just want to draw your attention to an article in AdditudeMag (an online journal for parents of children with ADHD and/or Learning Difficulties).
12 Steps to Better IEP Meetings
by Karen Sunderhaft
I'm not 100% certain that I agree with all of the tips presented (the presentation idea sounds way over the top) but I feel that they are mostly good advice.
Just be aware that an IEP is only as good as the team behind it. If you ask for too much, they might agree without actually putting anything into place. The amount of work that a school is willing to put in will vary considerably and it doesn't always bear a resemblance to the amount of funding they receive.