Im looking at purchasing a new sound card to replace whatever it is that I have now (came with the mobo)....all I know about it is that its not that great (its a RealTek AC97 Audio). So I dont have a whole lot to spend, preferable not much over $100 or at all, and only have a 2.1 speaker setup. Would it even be worth it to upgrade my soundcard or would I need to upgrade my speakers as well if I decided on that?