What is the real difference between the creative x-fi xtreme musicsound card and the Creative Sound Blaster Audigy2 ZS sound card. Will you really notice a difference in sound quality between the two. What is the real difference between the 2. The Creative Sound Blaster Audigy2 ZS is a lot cheaper so why would I spend the extra money on the x-fi if it really isn't that much better. also are both of the sound cards compatible with the logitech z-5500 speaker system. that is also what speakers the sound card will be going with. Thanks
Matt
Matt