Anyone know? I was going to get a 5.5gb iPod to go with my Hornet/Alo combo, but I'm now considering the iTouch or iPod "classic" as well. Anyone know if there is liable to be a sound quality difference between these and the 5.5gs? I vaguely recall that the 80gb iPods weren't as good a choice as the 30gb versions, but I can't recall why. Cheers.