I won a DS for free earlier this week, but I dont really know that much about them. Anything I need to know about in particular? I'm probly going to get a WiFi USB adaptor soon (for my Wii too), and probably only 1 game. Any reccomendations? What games have the best/funnest online multiplayer? Anything else you can do with them online besides play games? I know its a broad topic, but just wondering what some experienced users have to say.