DC Motor with Arduino

Hi we are designing a robot which can follow you.I am new to this.Can you please suggest if arduino Uno is enough for this?ALso we are using four Johnson motors- 12v 100 rpm. Which motor shield can be used?

sureshm1974:
we are designing a robot which can follow you

That's spooky - how does it know where I am?

Someone here has a very similar problem, and a very identical IP address