"I'm just not sure if a Inuke 6000 can run on a dedicated 20 amp circuit or not... if It does I very well may get one"
this thread might be worth looking through:
in essense, speaker loads are not purely resistive and circuit breakers tend to have some give in them for short bursts, the combination of the two means that you can put a whole lot more amp on a circuit than it would appear using ohm's law.
in winisd, take a look at the "apparent amplifier load" tab for a rough idea of how current actually varies with frequency. here is the marty sub, with si 18 driver, 80hz low pass filter, set to 1000 watts to make it easy to read:
you can see that near tuning power is maxed, but for the most part, power is less than 50% of 1000 watts.
you should be just fine! :-)