We started using AC last summer, and connected it to Medisoft with the X-Link program. A bit pricey, but they do an excellent job. I just put in a new computer for our file server on a XP Pro network, and had to do a clean new install of AC 5.0.24 along with Medisoft V. 11, and then pay $175 to X-Link to reconnect them. It was easy, but not cheep.
I will be very delighted when AC comes out with its own billing software.
