Powering an Arduino Uno

Nick,

Alrighty, well that does bring up some problems then. I'm not sure if I need each LED to be indivisually adressable. I basically want these 14 LEDs to do a chasing lights type pattern, where one turns on, then the following one turns on as the previous shuts off. I want this to chase faster and faster, and then I want just the six PWM pin LEDs to remain on, fading in and out (pulsing). Is something like this possible without having each LED in it's own pin? What would your suggestion be to handle this project? 20 pins is plenty, so do you think I would need a shift register or port expander still? Thanks so much, Nick.