Hi. I was planning on upgrading my sound equipments. I got rid of my old headset and got the AudioTechnica ATH-M50, now I just need a good source; currently I'm using my old Creative Xtreme Gamer soundcard. I was searching for the best soundcard available, I found the best two cards (I think) which are: ASUS Xonar Essence ST Virtual 7.1 $200 and Creative Labs X-Fi Titanium HD PCI-E $170 Now as far as I see it, the Xonar seems like it has better specs, but are they worth the extra money, I mean are they really noticeable ? $30 is nothing if there is going to be a noticeable difference. By the way, I've heard rumors that the Xonar ST version sounds better than the Xonar STX version, any ideas about that ?