Other than converting my whole network to wireless, what would be the best option to get the Wii online on launch day in the US? You can buy a dongle for your ethernet outlets that swaps it to wifi right? But wouldn't that be a security risk, without some kind of encryption or security from the router? And with the official usb ethernet adapter's status still unknown for the US afaik...
My sister also wants to get online with her DS, and upgrading the network is not an option right now. What about buying a $50 wireless router and using it in conjunction with my ethernet network (plug it into a downlink port of my normal router)? Will that work, and don't only certain routers work with the DS?