Texas has a strong contingency of special education advocates. I highly recommend this series of interviews with some of the advocates that break ground, work with districts as they sometimes have to stand against them.
http://www.blogtalkradio.com/specialed (http://www.blogtalkradio.com/specialed)
Listen to these while you're making dinner, working out. Together with the 504 webinars also in the resource thread it will help build a catalog of advocacy experiences to add to your own.