one note, to set up the express, you'll need to temporarily plug it in via ethernet. either to your existing network, or directly to your computer. If it's easier to do this somewhere other than the final location, that's fine, you can unplug and move it once you are configured.
also if you need cables, don't forget to check out
monoprice. They are significantly cheaper than anything you'll find locally. you can get mini to toslink cables up to 12 feet for under $3.
thats not necessarily true.
because justlike a computers Wifi it will pick up the signal to communicate, you actually just need the AirPort Utility installed first so the communication protocol can work and ocmmunicate properly to the devices (that is if hes using a Windows Computer, Macs come with it preinstalled)
i have an Express (802.11n), all you need to do is:
1) install AirPort Utility,
2) Plug in your Express to your outlet where you want it (you dont need to hook it via Ethernet or anything like that) you can plug you audio cables in aswell at this point.
3) Launch AirPort Utility, it will show the Express...click on continue...it will then further you to instructions on setting it up.
First it will ask if you have a wireless connection, you select yes, then it will ask if you want to replace an item on the network or join it and you want to select Join.
Then at that point you find your wireless network in a list of available ones, type your password, continue.
then following that it should recognize the network, show the settings and say its good to go and will restart.
Upon restarting it will reappear back into the airport utility...next to the item picture you will see a colored Circle....Green is good, orange means theres something up..physically check the AEX to make sure its a solid green and then in itunes you can direct all your audio to your new wifi speaker system.
