Maybe this is just me; I don’t understand why you would want, or the point of another sound card. The mobo already has a nice integrated sound card, with both "true" digital output and analog output. I say true because some motherboards with digital output convert it to analog and then to digital. This board does not. With your current speakers I wouldn't think you would need anything more than the integrated sound card.
Personally I don’t notice the difference between the integrated one and a dedicated card, so I cant justify spending any money on it, even if it is dirt cheap. Especially if all you are doing is gaming and watching videos.
My 2 cents, if anyone cares.
I think onboard sound is terrible, and much, much better sound will come from a dedicated sound card paired with a decent set of speakers.
I would not buy anything from Creative, look at the Turtle Beach cards.
Used to buy Creative products until I caught my current Turtle Beach card on sale one day, and thought what the heck, I'll give one a try. That was about 8 years ago, when PCI was fast becoming the standard and the old ISA slots were quickly dissappearing. I have never, ever thought of getting anything else. Hooked it up with a pair of Altec Lansing speakers and subwoofer. It just flat pumps out some excellent clean, crisp and LOUD, sound.
I just keep migrating it from new build to new build, quick and easy, never a problem of any kind.
It's the ONLY piece of hardware I haven't replaced or upgraded at least 10 times in those 8 years.