In my system, I have 2 12 guage dedicated lines (one for power and one for signal components). I do not condition the power amplifier, as it sounds MUCH more lively and transient not going the Panamax M5300 PM power conditioner.
I do HIGHLY suggest quality recepticles (not just hospital grade). Furutech GTX-D is what I am running right now, butt also had great sound from Oyaide R1 (NOT the SWO series), Cardas, and PS Audio...though the PS Audio is the worst of the lot, but still an improvement.