Just realized your post says Intel...You already have an Intel board? CPU? or mean a Windows as opposed to a Mac? The A64's run a lot cooler than Pentiums,and the "Cool+Quiet feature lowers power when demand is low-which means even less heat,and so the fan then runs slower,or even will stop at times. You can be very quiet-AND powerful. When fine tuning music files you want no excess puter noise.
If you do not already have one,find a decent Stereo Amp,speakers, Don't rely on "computer" speakers. You can find a nice older reciever or amp,some speakers,CHEAP at yardsales.