How fast does Cable Internet go? The fastest I've gotten on my PC is around 300 kbps. I just got an eMac that uses Airport Extreme Card connected to a linksys router. I've gotten slightly slower speeds on my Mac. My question is, if I get the Airport Extreme Base Station, will my cable internet go at 1500 kbps. It says it will go 5 times faster on the Apple website, but I'm not buyin it.