If you truely have a budget of 2 Grand. And you want your power supply to last...
The Power supply in my Sig.
PC Power and Cooling, 610 Watts continious, 670 Peak.
Its uber..
Toughpowers are ok, but there are better choices for the money.
Course you can't go wrong with any of the brands on my Simple list, Stated on the Power supply guide linked in my sig.