hello. I'm new here. And here is my dilemma... I'm in the market for a PB...and I see the prices on the 15" just came down to more of my price range. I'm considering getting the reduced 15" PB, but I'm not sure if that's a good move, considering that the new 15" should be out in just a few weeks. I'm most concerned about the wireless option for the PB...if I get an Airport Card (not extreme) will I be able to upgrade to Extreme later? Or am I totally effed? And do you think when the new Pb's will come out that they will be priced where the old 15" Pb's were? I don't know what I want to do. Please help.