My daughter is getting a new house with a roommate. She has a Macbook and the roommate has a PC notebook. I'm getting DSL installed. They'd like to share one printer. My question is, what would be the best setup in terms of router/Inernet Access Point, sharing the printer? I'm a little confused if I should buy an Wireless Router, or if I should buy a regular router and connect an Airport Extreme or Airport Express to it? Or something else? I know that both a PC and a Mac can connect to either setup's WiFi, but which will be better for getting both networked so that they can share the printer (a USB connection to something). I guess if need be, they can just physically connect the printer to their computers with a USB when need be. They are college freshmen on a budget.