For those that may be interested...
I got the Berhinger FCA610 the other day. While I have no basis to compare it to pro gear I am able to share my experience with sound cards.
Install:
Installing of the drivers and unit went fairly smoothly. There was some unplugging and replugging of the unit and unit config to get the drivers to see it. But it was not too difficult.
Output:
Overall the sound quality is magnitudes better than the Soundblaster or Realtek cards. The sound is much cleaner and the stereo soundstage is greatly improved. I don't have the glitches that I was getting with the sound cards. So far, it works flawlessly in Sonar and other apps with a qualifier. Due to things like EAX and simulated 7.1 from stereo sources that were done by the soundcard, those no longer work. Of course, I can still do surround processing in those apps that support it. I kinda miss the surround emulation but the better sound quality more than makes up for the loss.
Input:
Again, it is much better and cleaner and more open/airy sound than with the SB/RT inputs. No issues in any software so far with the inputs. I rarely use them anyway but nice to know there are there when needed...
Conclusion
It fit the bill for what I was looking for considering the environment and equipment I had. While one of the points for getting it was the firewire connection, I found my board did not have a firewire port onboard. Seems like it has all other modern PC connections known to man but no firewire. I haven't had any issues with the USB2 connection so I may not actually need the firewire. With USB2, the ASIO drivers are showing a round trip latency of 15.8ms. Since I'm not having issues I'm guessing that is good enough.
Given what I was using and the improvements I have seen I would definitely recommend the unit. Like always, your mileage may vary.
Thanks for the suggestions though people! In researching your various units I was able to run across this one. While it may not be as good as those that you suggested, your suggestions will be seeds for any future upgrades.
----edit----
Typo corrections. sigh