I work from home at present and I have two PC's connected to via broadband. One I use to listen to net radio etc the other I work on or even to visit the chat room at the same time.

I use a very simple router. It can take up to 4 computers and was dead easy to set up. I have not reaaly noticed a slow down on either machine when both connected.

I would advise you also have a fire wall. I am using Norton Internet Security software which combines a Norton anti virus and a Norton firewall type application.

So far (fingers and toes crossed) I have been virus free and no one has managed to get into my PC by hacking it. When you are on braodband you seem to be more open to virus's and people wanting to look inside your PC.