I looked at all the usual Pci card makers and when I asked a simple technical question I didn't get a reply from any of them. At the same time I sent the same question to a German company Auzentech and got a same day response. They make a 24/192 similar to E-Mu's and decided to use their Pci card for my main audio card. It's been solid and works well interfacing with my Echo 12 firewire, which is also rock solid.

I would like to add that in todays world of Mp3 sales a lot of studios are using 24/48 to record. The recordings are far better than any MP3 playback. You can impress your friends with 24/192 but the consumer is at best going to listen to a 320 kbs Mp3 and 24/48 is still a lot better quality than a commercial CD. A thought to keep in mind.