Anyone use this PSU?? Im building a system that will be used for digital music in a very high end setup, so i need something powerful and quiet. Ive had good expereinces in the past with Ultra's psu, so i am considering thier X-finity 500w active pfc. Any others i should be looking at?? I want the cleanest and quietest PSU available and am willing to pay up to $200 for it. Can anyone point me in the right direction?? Is the Ultra a god choice??