I'm with Paul...I really need the Practice Management module for Amazing Charts. IMHO this is the number one priority.
I've not had any experience with advancedMD, but I would be careful and make sure you do your due diligence. My experience with an outside billing company was horrid though I know others still use them and say they like them. Perhaps it was because we were the first account for that company in our state...but I doubt it. Either way, after 6 weeks, the only accounts they had billed was the state L&I program and one of the basic health programs.