Come on over, robot lovers. Toss those gloves and goggles aside for a moment and throw this guy some advice. What platform keeps you up in the garage at night?"I am an aspiring roboticist who has been using Lego Mindstorms NXT for a few years and I am looking for the next step up. I have a budget of about $400. I am looking for something that has more motors, more sensors, and a way to have it live feed video back to a computer. I would also like a platform that has a large amount of building that can be done on top of it, such as adding an arm or another array of sensors, or a different drive base. I'm new to the world of robotics outside of the NXT, so any tips would be appreciated as well. Thanks!"