Amazon.com has a LEGO Mindstorms: Robotics Invention System 2.0 for $149.99 with Free Shipping. Excellent Reviews.
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- Build and program your own LEGO Robots! Contains everything you need to create thousands of robotic inventions. The key to this awesome new invention system is the revolutionary LEGO RCX, a programmable microcomputer that acts as the brain of your robotic inventions.