This is the drive I have in my Pismo 400 MHz Mac Powerbook: IBM Travelstar 20 GB - 66.6 MBps - 4200 rpm.
I would like to upgrade to a larger drive as I'd like to partition it, one partition for Mac OS X and the other for system 9.2.1.
How big a drive can I put in here, at the fastest speed that I can use? (The current one is 4200 RPM...a 5400 RPM would be fine.)
I also understand that the drives that go in this machine are Ultra ATA/66s.