Hi, I'm considering buying a soundcard for my PC and I want your opinions. I have a Logitech Z2300 for my speakers and a Plantronics 780(USB) For my headset. I was wondering if there will be a noticeable different in sound quality if I were to get a soundcard I am currently using a AC97(integrated) soundcard on my system. My budget is roughly $50 I can spend more if you guys think it is worth it.