I have a 9gb and 34.6 gb SCSI hard drive for sale. They are Fujitsu, and I have installed the 34.6 GB in my G3 desktop. They require a 25 to 50 pin adapter and some small inside the case modification. Both seem to run on whatever kind of SCSI card that the computer came with.
The 34.6 GB is in place of the ZIP drive and the 9.1 GB is in on the top "hidden" bay. You can't boot off of either of these drives because they have to be formatted with HDT PE toolkit; the apple drive setup won't recognize them.
I guess this is getting a little complicated, but I have two of each of these drives and the extra one is for sale.
Val