I have a Linksys WRT54G as my primary router connected to my cable modem in my bedroom. I have configured an Apple Airport Express in my den as a wireless access point, connected via ethernet cable to the WRT54G. Now, however, there is a device in my den that I need to connect to my network with an ethernet cable, and the Airport Express has only one ethernet port. If I buy another WRT54G and configure it as a wireless access point can I also plug this device into it for a wired connection?