I started writing a bunch of options and explaining how another consideration is how the IP addressing will work, but to cover all angles would take too long. It would be much easier if you explained more about your current Internet connection.
For instance, what sort of Internet device do you have, modem/router? Does it automatically assign IP addresses to your PC (DHCP) or do you get one directly from your provider? When you log into the Internet, do you have to type a username and password into a client of some sort or does the modem/router do that for you?
Short answer is still that you need a switch of some kind, but weather or not a router with a switch built into it is the best fit, depends on how you get your internet.
