I am using DSL and have two computers in my house. The first is a desktop, and the other is an iBook. Right now my DSL modem is connected to a router which is connected by two ethernet cables to both computers. I would like to connect my iBook using airport but I still need to have the dekstop conencted by ethernet cable. Can I connect a airport compatible wireless router by line to my current router so I can still use that router to connect the desktop to? That would save me money. Or do I need to buy one of those wirless and four ethernet cable port combo routers?