The Mac in question is a iMac G3 400. It has an Airport card and the signal is very weak because the Linksys router is about 150 ft away in a separated garage. What I want to do is build a cantenna for this iMac on the iMac's end; not the router's. Does anyone know if it's possible to just pull the antenna wire from the computer(the one comming out of the Airport Card), and lead that to the cantenna? Would this work? Does anyone have a link for a project like this? It sounds like it would work, but I just want to make sure. Thanks.