In case anyone is interested. I recently added an Adaptec 2920 SCSI card and finally maxed out on IRQs and my sound card quit working. I added a Intrega 4 port PCI USB card and switched my printer to USB (Epson 740, it's great). It worked!!
I now have my Adaptec SCSI and 3 free USB ports. Plug & Play worked (Win 98) as it should. For those of you trying to keep an old system (in this case a P Pro 200) awhile longer this will help and it easy and cheap.