I sense my 12" PowerBook G4 will remain in duty as long as the new IDE drive keeps on tickin', if the internal HDD dies again I'll have to settle on an external FW400. AFAIK WD is the only HDD maker who still produces IDE drives, if/when they halt production it'll be risky to trust "used drives".
My old iMac G3 333mhz mainly collects dust, CRT seems to be nearing death so I may need to remount it into something like an iRack or ITX case
If anyone has replaced the HDD on a 12"/15"/17" PowerBook G4, you'll find the unibody MacBook Pros the peak of Apple notebook design... ~100 screws and a near-tear down for a PowerBook G4 isn't a fun job