I use my Powerbook in the living room on my Verizon wireless network. Is it possible to stream music to my speakers and be on my Verizon wireless modem at the same time? Usually you have to be on the Airport Express' network to find it in iTunes. Is there a way to override this? If not, has anyone found a way to extend the network of a Verizon Westell Versalink wireless modem? Thanks!