well drivers is always the problem. im still looking at that auzentech x-meridian but again there are some driver problems, some people have some bad lag with it too.. if you want it primarily for games, then get the xfi, if u want it primarily for music/video, then get something along the lines of an x-meridian. are u the one that just got the z5500? if so then digital would be nice, which the xmeridian has. but i would go ahead and do some research on that card first.