I think that's exactly what won't be on either the motherboard, or the PCI-e card! :)
I imagine the card will be an OEM version of the "X-Fi Xtreme Audio PCI Express"... which doesn't look like a very good card ( relative to other X-Fi cards ). A picture of the bundled card on the P7N Diamond...
If you're feeling bored/adventurous you could make your own from Cat5 :)
DIY Speaker Cables - TNT Triple T
Diagram showing how to connect the Cat5 conductors
Most people seem to use 3 lengths of Cat5 for a "normal" cable. I think the 6-strand "Triple T" cable might be considered overkill...
Tom's Hardware does a monthly opinion/review/update of the best value video cards...
http://www.tomshardware.com/2007/11/06/best_graphics_card/page4.html
It's pretty handy. I especially like the performance grid on the last page. Great for when you're wondering things like "is a 6600GT a lot...