Shortening the 8600/9600 case to make the beige g3 MT eliminated the 2 bottom HD bays, the rest is exactly the same as the 8600/9600 (HD bay over the PS, floppy, zip or HD, HD bay).
The cool thing about that case is that if you have the correct bezels you could have all cdroms or HDs instead of the floppy and zip, which you cannot do on the older PCI machines.
I suspect that Apple figured that since they went to IDE onboard for the Beige G3 you could only install 4 drives anyway (2 HD, cdrom, and zip) so why bother with the bottom 2 drive bays. If you add a SCSI card you might as well use an external drive case.
The cool thing about that case is that if you have the correct bezels you could have all cdroms or HDs instead of the floppy and zip, which you cannot do on the older PCI machines.
I suspect that Apple figured that since they went to IDE onboard for the Beige G3 you could only install 4 drives anyway (2 HD, cdrom, and zip) so why bother with the bottom 2 drive bays. If you add a SCSI card you might as well use an external drive case.