Brian Getz wrote: >The 4 gb number seems to be the limit if you want to >use SCSI disk mode. > Yes, that is also my understanding. Refer to the following technical note: http://eshop.macsales.com/Descriptions/Specs/applepbhdtechnote.pdf If you don't ever intend to use SCSI disk mode, then hard disks larger than 4GB are fine. -Joe