Is there a type of usb port that can improve quality of my recordings? If so, is it compatible to my sony vaio? The reason I ask is because, I always listen to what I'm recording through my hd 500, and I notice I get a fizzing sound when I plug my usb into my computer. There is less noise when I set my computer to "power saver" mode (as opposed to "high performance" or "balanced"). I feel that I lose a little bit of depth in sound through recording with cubase that I don't lose when recording with audacity any guesses on what might be up with that? (I suspect it might have something to do with the drivers) Also, I'm considering buying a use pod x3 for recording (I love the hd 500 for cleans and lead tones as well as cool tricks and effects, but I really want to also have the bass amp modeling and the rythym distortion guitar sounds better from what I've heard on youtube and other such places  [But what are your opinions on that?]) Should I be worried about being limited in my  ability to register a product or use software? I read that the software is slightly different than hd 500 edit (and I've read the x3 comes with pod farm, does that mean I can't get the software if I buy used?)   I'd just like to hear what you guys have to say about this, I always learn a lot from these discussions.