I currently have a Turtle Beach Montego II Quadzilla sound card. It seems to work okay but is not fantastic. I have my sound card hooked up to my stero system using a cable with a miniplug on one end and two RCA jacks on the other end. The stero system has two large bookshelf speakers and another two smaller Altec-Lansing stero speakers. I'd like to get some better sound from my computer - should I buy a new sound card or speakers, or both? Not looking to spend a lot of $ though, around $120. Thanks