Look here for reports on specific drives in specific mac models.

http://forums.xlr8yourmac.com/drivedb/search.drivedb.lasso

Generally any standard drive will fit and will work as long as there is a driver for it. Either the native OSX drivers or Patchhburn http://www.patchburn.de/ Since this drive shipped in a mac I can only assume it uses the built in driver. You also need to be aware that most powerbooks have a seperate ATA bus for the optical and hard drive. The ibook G3 uses a single bus, as such either the hard drive or optical drive you use must jumpered to slave.
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PB G4 15" 1.2ghz - Pismo G3 400 mhz - iBook G3 500 "Jukebox"
"SawSmurf" G4 500 - Quicksilver G4 Dual 1ghz modding...