Will a scsi controller give me the freedom to run 2 printers and a plotter plus a Scanner? Have a new 400 and already have run out of IRQ's. Tried using a serial mouse (to free up IRQ 12)but ps\2 mouse apparentley is hard wired in my SE440BX cpu. Hardware is Microtek scanner W\apa 1502ae scsi card that wants IRQ 9 to 12. Will never need more H.D. room than present. Considering a CD-R in future.