Tim, to expand on a couple of points:
I believe a few people successfully use the "sync" function, but most on here find it to be unreliable (if there are happy sync users out there, please speak up). This means that when your wife takes the laptop, her only other choice is to keep the one AC database in the office and log in. That works well, though as pointed out above, she must have internet access (e.g. from the patients' homes) to access AC.
Keep in mind one other limitation: only one person can use a machine at a time. For example, if you log in to the laptop, she cannot be using it simultaneously. If you create a wireless network in the office, she will be logging in from the laptop to work directly on the server (which in itself is not an ideal practice), but you will not have access to either machine at that time. Similarly, if she is out of the office using the laptop to log in to the server, you will have no access. I believe the solution will require either a wired network in the office OR buying another machine.
