Here is a versatile humanoid robot with advanced sensors that you can use for robotics research. ROBOTIS OP2 has a built-on computer powered by an Intel ATOM processor and 4GB RAM. It comes with 2 microphones, LED eyes, head LED, and a USB camera with mic.
The robot also has USB, Ethernet, and mini HDMI ports. Its 1800 mAh battery lasts for 30 minutes. More info about this 20 DOF robot is available here.