As for the lights, it might be best to run off an unused disk drive connector (+5V ot +12V). Also, you could get a cheap transformer from Radio Shack, Wal-mart, Target, or other stores to power your lights. Just make sure the voltage and amperage correspond to what your lights need. Most transformer adapters can supply between 1.5V and 24V, and between 100ma and 3A. For incadesent lights, it does not matter if the voltage is AC or DC. For LEDs, DC is probably best.