I did a quick search and couldn't find this question. I have an original G5 iMac without the airport card. It is connected to a Linksys router through a wired network. I would prefer to keep it that way - i.e. hard wired. (I also have 2 PC's connected to the network through hard wire - though they both have wireless cards.) I am buying a Macbook and would like to use it wirelessly through the house, so I am looking at a mix of wired and wireless (hopefully). I called the Apple Store, and they suggested buying the new Airport base station to replace the Linksys router and then connecting my iMac (and the 2 PCs) through the hard wired network to the Airport base station. That seems straightforward enough. I asked them whether instead I could keep my Linksys router, buy the Airport Express and connect it through the hard wired network to connect my Macbook wirelessly. This would be a bit cheaper and a bit easier. The CSR I spoke with could not answer this question. He replied that the main purpsoe of Airport Express was to extend an existing wireless network - not to turn a wired network into a hybrid - wired and wireless. So, should I buy the Airport Base station or can I make do with the Airport Express? Thanks.