Alright, I'm digikeying all the parts now. I'm going with a smaller 100uf capacitor. I don't think I can use an LED because the 25 has 6 pins, VCC, GND, 2 for servos, 2 for photoresistors.
About the voltage regulator, if I'm using a 4 cell nimh battery (4.8 volts nominal, a bit more fully charged), do I still run it through the 5v regulator or do I not need it as long as it still goes through the capacitor?