The onboard sound that came with my iDEQ sucks, so Im looking into getting a USB sound card? Is it worth it? The only ones I know of are the 2 by creative (MP#+ and Audigy NX). I wont be hookingit up to surround sound or anything, I ust want better SQ and more power delivered to my headphones. Do any other compnaies make USB soundcards that are better than the ones by creative?