If you’re using either MacOS9 or MacOSX, you’ll have no problem connecting to virtually any broadband service. Most providers have instructions to connect up your Mac to either the supplied (and usually free) modem or a shared connection. Generally a system called DHCP is used, which automatically connects to your modem – so, providing your broadband connection is set up (which is done when you first sign up), you should have no problem at all.