iBook G3 HD Dilemma, what's the cheapest solution?

[Snial]

I think the limit is actually 128GB, but disks only came in 120 and 160GB or something, back then, so 120GB was the biggest disk... But...

What I did was partition my 128GB SD card in another Mac that was happy with them, into two 60GB partitions. Just avoid repartitioning it on the device itself.

Sounds good to me, happy that it's option 3.