Update / Summary: "That should work", followed by "it would be a lot easier to just buy an Airport."
I don't have any wireless devices of my own, but a certain lady of my acquaintance has a Powerbook that she would sometimes like to use from the couch without dragging an ethernet cable over. Can my iMac behave as a wireless base station? I created a network on the iMac, and was able to see it from the laptop, but the laptop wasn't able to get to the interweb. Is there some extra trick I need to do to get the iMac to route between wireless and ethernet?
Current Music: Society Burning -- Human Waste ♬