OK, i want to describe my current setup before I get into the meat and potatoes of what i would like to accomplish. I have a cable internet connection installed in my living room. Connected to the modem is a wireless router. I have the PS3 hard wired into the router. I also have 2 computers wirelessly connected to the router. One upstairs and the other in the basement. OK, I just recently purchased a used Mac G4 Quicksilver for $50. Hell of a deal really. I want to install it in the basement next to my PC. But i really don't want to have to get another wifi card. Is their anyway to enable internet sharing on my PC to allow connection thru the Ethernet? So I basically want to connect my PC to my MAC via the Ethernet ports to allow internet connection sharing. I need to maintain my WiFi adapter in my PC as its a hacked Nintendo Wifi adapter to give me a CHEAP wireless N adapter. How would I go about doing this and is it even possible?