Sorry Robscix...your review is similar to the one I linked! Good job.
I always had troubles with Creative drivers, and that Daniel_K situation sealed the deal for me. I did go out and get a Zen for cheap a month ago and have loved it, but I doubt I will ever recommend their products again. Too expensive (related to competitors), too buggy, and the forced obsolescence and lying to customers to get them to buy new products is just insane.
OP: The Xonar DX is a really good value. I could not find a poor review of it when I went looking for a new card a while back. It is pretty small in size as well, allowing for better airflow/space in your case. The only thing is that the Xonar needs a power connector (uses the floppy power connector). If you have money to burn the Xonar D2 (
ASUS Xonar 7.1 D2 Review ) has a few more bells and whistles, but I doubt you will need something like this.