I am a PC hobbiest sort of, and have built many a PC, I hate anything integrated. I agree, the less onboard the better, I have a PC with AC97 and have disabled it from the bios and thank goodness no problems. Some time the bios isn't so friendly, My brother's Dell doesn't have as many options in the bios that are obvious for the timid tweaker.
ps my buddy here says not to listen to me as my pc sounds like a jet engine and he says Go MAC,