I bought a 360 over the weekend and I can't seem to "split" my DSL connection correctly. I bought an ethernet hub to hook up to the DSL modem. One hub port connects to my Airport (for iMac), another hub port connects directly to the 360. The problem is, only one or the other can connect to the internet at a time. When Xbox Live is connected, my iMac can't find the Airport. When I'm on my Mac, Live connection will fail. Is an ethernet hub the right piece of equipment to split a DSL line, or do I need something different? I just don't have much networking experience, any help would be appreciated.