Newbie with kind of weird sound card question

Hey guys, I have a Q6600 processor with 4GB ram running Win 7 32-bit. I still own an Audigy2 Plat EX from my gaming days, which is the only piece of hardware I didn't see a point in upgrading since I did not music production. Well....now I just got Sonar 8PE with EWQL Gold, I'm seeing the deficiencies of the Audigy.

First of all, seems that with 8-10 samples running in Sonar, the audio cracks and pops and ASIO latency rises noticeably. Second, when I use the piano sample and press the pedal down and try to record a string of sustained notes, the earlier notes would go immediately disappear after five or six notes after it are pressed...it makes for a very unrealistic sound, no matter how good the piano sample is. A better card should take care of that, right?

So my question is this: Is it possible to retain my audigy for my 5.1 movie and gaming needs and tack on something like a Delta 1010 or 66 that will only be used for midi and music production processing? I have studio headphones I can plug into the M-Audio, but would like to keep the Audigy as my general purpose card connecting to my 5.1 Logitech Z5500's.

Thanks,
Shane 

Great news then! Thanks.

Any recommendation to a sound card between 150-200 dollars? 

I used to have an Audigy 2 Platinum EX until the external I/O box quit working.  However, when I did have it installed I only used it for Windows audio applications.  I used a separate Firewire audio interface unit for Sonar.  Both co-existed without problems.

Generally with SoundBlaster's you need to use WDM rather than ASIO. 

Thanks guys. So it turned out my drivers were really horrific and I had just updated them. It now runs flawlessly with 5ms ASIO latency and doesn't crackle or pop up to 10 synths. 

May I ask what the difference is between something like the Fastrack Ultra and my Audigy, other than the different number of inputs? Is the sound quality actually better, or does it handle more samples, more processing, etc? Thanks.