So I've got an iMac running Jaguar connected to a phone line, and its Ethernet port is plugged into a switch to which several other computers are connected. What I want to do is to be able to use the iMac's dial-up internet connection from any other computer on the network AND be able to dial into and disconnect from my ISP from any computer on my network. What would be the best way to go about this? (For free?) What would be ANY way to go about this, in fact? Jaguar's built-in Internet sharing seems like it would work, but I still can't figure out how to dial into / out of my ISP remotely.