Ok, here's what i've come up with regarding the volts and current.
RGB LEDs:
3 channels of RGB LEDs, total of 11 lights x 20ma each = 220ma
3.2 volts per RGB LED
Regular LEDs:
7 channels with a total of 16 standard LEDs x 20ma = 320ma
2v per regular LED
Controller (input) Device – 5v – up to 500ma
Arduino – 7-12v 200 MA(?)
Arduino VoiceShield – 3v Not sure of amps - VoiceShield
Daughter Board (74HC595? http://www.arduino.cc/en/Tutorial/ShiftOut?) = 5v Not sure of amps
Amp circuit – 6v - http://www.circuitstoday.com/mini-2w-amplifier-circuit (.001 amp? tried using Ohms law but may not have it down yet!)
Sonar Distance Sensor – (5v from Arduino) - http://arduino.cc/en/Tutorial/Ping?from=Tutorial.UltrasoundSensor
Hope that helps clarify...