yeah personally all i need is a SCSI2sd that can be poped right on the back of any mac and works.  just a nice little card that has a Male Db 25 pop on and rock. that is what i think most people would like... then the guys that don't like opening up their machines can be happy too.

pop on and rock, Bus powered,  heck even with the Mac Plus, you could just put a jumper where the diode is suppose to go to allow termination power...   same with the dove scsi add on boards too.