Note: The NXT Base Set works with the NXT Software 2.1 (sold separately), see forum thread and Wiki post for additional information and discussion.
Editor's Notes & Price Research
More details about LEGO Mindstorms can be found here and see the forum thread and Wiki post for additional discussion and information. This looks like a great way to introduce kids to robotics. -Corwin
Note: this is the Lego Education Set. It will not come with the NXT Software. It is recommended that you purchase the software (also 50% off) as well for $39.97.
Overall this is still a fantastic deal. for about 200 bucks, you get a full LEGO Robotics suite. Right now the closest thing is the EV3 (newest version) that never sells at a discount for $350.
But this education kit comes with the older light sensor that requires workarounds to work with the EV3 software. Get the kit and the color light sensor and then use the free ev3 software. The better half price light sensor is:
A great STEM Site
Course: STEM Robotics 101 NXT: http://stemrobotics.cs
YouTube Vid discussing Differences EV3 NXT
Differences in sets: (great to get more detail)
The First Open Source LEGO(R) MINDSTORMS(R) NXT Firmware Development Kit: