For those of you that are not sure about Airport Express, one nice feature is as the screen grab below...
...plug in the Airport Express into the mains and set up the wireless network and then run an optical cable from it into your hifi, you can then select your hifi in the 'living room' or whever and play your 'tune's through your proper hifi, via iTunes remotely...
Wifey has her iBook playing in the kitchen which then sends the 'tunes' wirelessly to the hifi in the lounge !
...plug in the Airport Express into the mains and set up the wireless network and then run an optical cable from it into your hifi, you can then select your hifi in the 'living room' or whever and play your 'tune's through your proper hifi, via iTunes remotely...
Wifey has her iBook playing in the kitchen which then sends the 'tunes' wirelessly to the hifi in the lounge !