I've been looking at this system too. http://matrixrobotics.com http://matrixrobotics.com Interfaces perfectly with Lego and is more Lego like in the way you ca

I've been looking at this system too. http://matrixrobotics.com http://matrixrobotics.com Interfaces perfectly with Lego and is more Lego like in the way you can build things. Their holes line up perfectly with Lego holes. Pretty cool.