Yeah, I'm a santa cruz whore. Definitely one sweet card. For sound quality, go with that. But it is pricey. 🙁
Audigy, its creative, its the card you want to get if you bought the speakers to play games. It supports the most audio extensions, with the lowest CPU usage. Of course, creative is not known for their stability w/ via platforms, although if they haven't figured that out by now.
CMEDIA, definitely the low price winner here. Does everything, and does it well. Its a steal for $10-$20. I doubt you could go wrong with that.