Interesting to see your still testing the waters of the sound card world.. I haven\'t tested the sound crown but PaPa Chalk reckons its good for GS use. I have used a Yamaha Waveforce 192 but I didn\'t like it. The noise was to much and it popped and clicked.
I still would suggest having a look at a Turtle Beach Montego II with a I/O option. It ships for about £149 in the UK but better than the SB Live in that it supports 44.1khz on the I/O.