Hello, Johnathan. Depends on what you mean by interface. If you mean
interface in terms of sound alone almost any of them should unless the
Procom is very strange indeed. Your Procom card would take up one slot, the
sound board another. They would interface via the sound cables.
If you mean you want to save a slot and use a SCSI interface on a soundcard
to drive your CD-ROM reader you are more limited. SoundBlaster uses an
interface that only works with Panasonic/Matsushita/CL drives. The new ATI
Stereo FX CD board has one that only works with Mitsumi. Some Media Vision
cards have a full SCSI interface. So does the Cardinal, I believe. There
are others as well.
Unless that extra slot is very important to you, you really can buy
whatever you want and whatever is best for you and your wallet.