So I've got a quick question regarding Airport Express, specifically Airtunes. I have my iMac connected via ethernet to my DLink wireless router and the Airport Express setup as a client. I was mistakenly under the impression that I needed the iMac to be connected via airport for Airtunes to work properly. Low and behold, after reading up on the web, I decided to remove the airport card and try it via ethernet and it works. In my case, I don't need the airport card at all correct? The reason I ask is because I just bought the airport card last week at the apple store and if I don't need it, I can save myself 79 bucks. Thanks for any info.