I am going to be setting up an access point in the library at my school (probably Netgear), but what I want to know is how I can maximize the wireless coverage so that I can get a "really" good connection in my dorm (about 250 feet away across a courtyard). Should I set up an antenna or should I attempt to set up a another access point to extend the signal? How does a college go about setting up a wireless LAN so that it can extend over most of their campus?