We want to sync the address book between all computers on our network (4) - is there a way to do this? What do you suggest. Thank you.
There are a few ways to do this but here are the two ways I would recommend. The standard ™Apple™ method is that you would want to use the MobileMe service to do this. You can sync calendars Address Books and even BookMarks. It was designed with the idea of keeping your Home and Work Macs in sync but will work in a small office too. It is integrated into the OS so you really just have to enter the account info into the System Preferences and enable the services you want to keep synchronized on that computer. There is a annual cost for this service and although there are many more features than what I have mentioned, you may not find the value in the service.
So next look at the Gmail solution. With a free Gmail account you can sync your Apple Address Book with a single account from many computers. In Leopard, go to the Address Book preferences and click on the General tab. Then mark the checkbox for ™Synchronize with Google.™ Click the [Google] button and enter your email address and account password. Set up all you computer with the same info and soon they all will be in sync.