good morning, rachel. first you should remove your last name from your post. this is to maintain your privacy & that of your family.
i completely agree with-srl. time to get a new pediatrician. this guy hasn't been listening to you for a heck of a long time. time to move on. call your insurance company & ask for a list of peds on your approved list then start researching them.
it's great that you've kept a record of your child's behaviors & difficulties. a really great way to get them organized & probably add vital information is to put it in the form of a Parent Report: http://www.conductdisorders.com/community/threads/parent-report-updated.225/. once you get the PR all organized save it to a disc for updating...add every evaluation, report, medication change, etc. in addition to the date, keep a paper file in a three ring binder & print out each new piece of information. trust me, you'll find this very helpful.
if you go to the home page of the site you should be able to access information on the various disorders we talk about here. take a close look at family history & hopefully it will give you some direction to where to look.
the books that have already been recommended are excellent. i would also recommend you get a copy of THE EXPLOSIVE CHILD by ross greene to help with-the behavior problems at home.
hang in.
kris