Here is another modular quadcopter you can assemble on your own and adapt to different missions. The XG171 Drone comes with a HD camera, LED lights, high speed motor, modular mainboard, and building blocks. You also get a simple remote control for it.
The drone runs for up to 10 minutes on battery. It features app control, one-key takeoff and landing, 360-degree rolling, and smart speed control. Expected to ship in January.