Has anyone any experience with Asus' Xonar series of sound cards? I am kind of pissed off with my Realtek HD that came with the mainboard and I am looking for something higher quality. I want to avoid Creative Hardware for the obvious reasons (horrible drivers, support) so I am looking around for alternatives. The Asus Xonars look very decent for the price, but I don't know about driver support etc. Are there any other alternatives?

Usage: Watching DVDs, Music (mp3) and Gaming. I have Logitech Z-2300, 2.1 THX-Certified speakers, no surround setup.

Any advice?