well, i've been thinking about getting airport extream for my 17"pb. i dont have any other computers at my place so its just to have wireless internet. i looked at apples website http://store.apple.com/1-800-MY-APP...NoL0S51p8hGNi5/0.0.7.1.0.5.21.1.188.8.131.52.0.1.0 -and there are 2 models of airport extream. i'm not really sure which one i need. id rather buy the one thats almost $100 cheaper- can anyone help me out here? also i was wondering if there are any cool things you can do with it, like i noticed there is a USB port on airport, could you put a USB Hub on airport and have things like a Camera dock and a midiman input on there?