As a general reference, I have also found the ADDitude website helpful. It's a public info site, not reference, but from what I can see appears reasonably evidence-based and a good place to start. Lots of practical info on how to live with ADHD on a daily basis. You might also find some interesting articles on how to tease out ADHD from other or co-morbid issues.
http://www.additudemag.comI too am psyching myself up (no pun intended, not enough coffee yet for that) for a serious look at the research around medication. I believe there has been some new studies that may make the decision making rather trickier? If anyone has seen a solid and extremely recent review of the pros and cons of ADHD meds, that would be much appreciated here too.
