I have a Linksys router which I have been using for 2 years now on a small home network. Recently I picked up an HP Advanced Switching Hub, on the advice of a friend. What is the difference between the two? I'm expanding the home network to a total of 6 computers. I was told the HP Hub was more secure and more options, etc. I was thinking about using it down from the router but could I use it by itself. I have a cable connection.