okay i don't know what appropriate title for this question, but anyway i'm very beginner in this "networking" things. in my house i use a CDMA modem connected to a wi-fi router DLINK DIR-412 so basically everyone / machine in my house connected to the wifi by this router. and i have a spare airport express (last time i use is but now no more) i just bought a iPhone docking speaker, Geneva Labs that have 3.5mm input. so i'm thinking to stream or airplay my music from my macs, and my iPad to the speakers using the airport express as the receiver. like i said i'm very beginner in this kind of thing. i'm abled to connect the my macbookpro to the airport express and played my iTunes library to the speaker via wi-fi but in order to do so i must select the airport express access point thus disabling my mac to connect to the internet as my airport express is not connected to the internet. my Dlink wifi router is connected to the internet so i'm thinking to use my airport express to "join" to the Dlink accespoint so i can connect to the internet and also use my airplay speaker . is it possible ? if it is how should i do that ? thank you very much.