If you building a computer based on a nVidia nForce2 motherboard, would you use the onboard sound or use a Creative Sound Blaster Audigy 2? Many people have said that the onboard sound is very very good. The main purpose of the computer will be to play games and watch some DVD movies. So, what's your pick? Oh, and the speakers will be the Klipsch ProMedia 5.1 Digital Dream System.