Hello everyone, I currently have just a Astro A40 headset. I was looking at getting a surround sound compatible sound card to help with competitive gaming, as well as to help enhance the music I listen to. I currently am trying to decide between this http://www.amazon.com/Creative-Performance-Headphone-Integrated-Microphone/dp/B00EZT7RE4/ref=pd_cp_147_1?ie=UTF8&refRID=1JZ02JQ8M05TR2CVER5S (Creative Sound Omni), and this http://www.amazon.com/ASUS-Xonar-U7-Sound-Card/dp/B00E7QA9E0/ref=sr_1_1?s=electronics&ie=UTF8&qid=1434386535&sr=1-1&keywords=asus+zonar+u7 (ASUS Xonar U7). I was also considering getting the astro mixamp, however I heard that a dedicated sound card would be better. Does anyone have any opinions on which I should get?