Hello, I just bought a NAD 315BEE amp to go with my psb speakers (NAD branded).... I currently dont have a cd player because its just so much easier to play music from my pc.. Only problem is the sound quality isnt amazing through my creative x-fi soundcard. I was just wondering if i was to get a better soundcard (any reccomendations?) would it make much of a difference to sound quality or is quality through a PC soundcard always going to be inferior to a cd player/hard drive player? Basically what I am asking is can you get good quality sound using a pc as opposed to seperates?