I currently have an ethernet wired network between my eMac (upstairs) and my Mac Mini (downstairs), along with the Xbox 360. These are just plugged into a SiteCom Switch. As the Wii has no ethernet and I don't currently have a wireless router or adapter, what is the easiest and cheapest way to connect the Wii to the internet? The Wii is upstairs and I don't have an etherent point in my sons room yet either. I have seen USB WiFi dongles but would this work just plugged into the Mac Mini? Any help would be appreciated.