Went to buy some electronic equipments at a local shop called Tokyu Hands. Bought 5 Bright red LEDs, 6 resistors 330ohms and 400ohms. LEDs cost 20yen or about 20+ U.S. cents each, resistors for 10yen or about 10+ U.S. cents.
Tested my 814 robot, worked great outside, but trying to figure how to conserve battery power. The 814 MCU board runs at 3V, and supplies 2motors 3V. The gear box of my robot uses Tamiya's 6-Speed GearBox H.E. bought for about $9.00. The wheels are equipped with 1/10th scale radio control car wheels, which provides great stability and speed. I made a electronics / robotics site with my robot and simple light and temperature sensor diagrams at: http://www.stingraze.net/electronic