Hello, We have a PowerBook G4 and a Sharp Mebius and a 2Wire ADSL Gateway. I'm looking for a wireless internet solution and I'm wondering if Airport Express is the right one. I don't know much about wireless modems. Telstra offers theirs for $250. I thought Airport Express might be a better solution at $129. I noticed that this PowerBook has Airport Extreme capabilities (according to the System Profiler). Does that mean I'd be better off with Airport Extreme? Thing is, Extreme costs the same as the Telstra wireless modem. I noticed that the PC requires 802.11a/b/g/n. What is that and how do I find out if the Mebius has it? Cheers.