Ok, so I live in a household with (currently) two computers - one Windows comp running XP and one new iMac G5, both with 802.11g cards. We have a DSL modem, with an ethernet cable coming from it and plugged into a wireless base station that is is defective at sending out a wireless signal. However at the moment this router DOES have multiple ethernet cables plugged into it, one going to my Dad's computer and the other to my iMac when I carry it down to his study.When I plug the ethernet cable in, I have to connect to a PPPoE account, which I can't do if my Dad is connected to the account at the same time. What I would like to do is purchase an Airport Express base station. My question is, can I simply plug the ethernet cable that usually goes directly to my computer's ethernet port into the port on the base station, and then connect to the PPPoE account wirelessly from up in my bedroom with the same ease I'm connecting to it now? Is the setup any harder than this? Do I need a lot of confusing IP numbers, etc.? Or will I have to scrap the entire defective base station and plug the port coming from the DSL modem into the Express Base Station, therefore forcing my Dad to operate off of wireless? And, finally, is there any way via Windows/Mac to set us to both be able to be connected to the PPPoE account at the same time? All help is greatly appreciated.