Hlsgsz: The Motherboard has optical out, but it's going to a headset (specifically designed for 7.1) that uses an optical in, so I'm not using a receiver anywhere with my setup. I couldn't get the surround to work, and after research it appears I require a sound card for the headset.
So honestly just as cheap as possible card, as long as it supports 7.1 and I should be good to go? Don't worry about the other features the product pages brag about?
Yes. 7.1 and optical out. Everything else is inconsequential as the card will be doing no analogue operation whatsoever.