I am looking at setting up a small home network comprising of 3 desktop PCs and a laptop PC. I am confused as to what i am going to need in order to get this network up and running properly. I have a 4 port cable/dsl gateway router already but i want all the PCs to share the same internet connection. i believe that in order to be able to do this successfully i am going to need a modem router and possibly an ethernet modem. the one i have at the moment is a usb adsl modem. please tell me what i will need and how to set up my small network.