Onkyo dolby digital receiver here, with an ATI 2 channel amp (225 watts per channel into 4 ohms) driving the mains. 5 PSB Stratus speakers all around, with a PSB 350 watt, 15 inch subwoofer.
Playing 'Call of Duty' rocks with over 1000 watts of power.
Only wish this Audigy 2 Platinum sound card I wasted all this money on would do true dolby digital out the digital output.