What about the SCSI kit with Blizzard 060 or the SCSI3 port of CyberstormPPC? How would an SSD perform there?
i have a ide ssd on scsi bus of my csppc since years and it works very well. it is via acard adapter of course. next to maximal throughtput close to 40mbs, but random acces and writing of little files may still be slower. on the plus side its cool and quiet.