I can vouch that the Aureal is NOT a POS. Vortex2 - Great card - a lot better sounding than most of the stuff that pass themselves off as 'sound cards'. I just wish I could get drivers for 2K, then I would upgrade to it.
When you put that system together, have the bare minimum in that puppy, and then add 1 piece at a time. Don't throw everything in at once. That way you can see if there are any problems as each part is added. Also, it is imperative that you have a real good PS for that board - it needs real good clean supply to run correctly.
Get the last official set of Aureal drivers from
www.vortexofsound.com and use those for the card.