I had a few questions about the audio that comes out of the Airport Express. It looks like a 3.5 mini jack, but it says on apples site that it does have Oplitcal out. If so where is it? How is the sound through optical output? Cause i would think that 3.5 mini jack sounds like crap in comparison. I'm trying to go for audio purity cause i have a collection that is all lossless. Second question is does it work like a wireless hub? Taking a wireless signal i've already got from my Netgear router and making a secondary wireless signal thats the same as the Netgear? So it can all be on one network. Can you use the USB port to hook up a Backup HDD by chance?