OK, I poured through this thread and discovered a large number of complaints that are wireless router related- specifically- Airport base stations. I just signed up with Comcast and all they gave us was a Modem which is now connected to a PC. So I guess I need a wireless router to connect my Mac. So could one or two 'experts' please chime in with the most reliable, easiest to configure solution? Express? Extreme? What's the difference and what's the best solution for failsafe connectivity?