I’m in the process of replacing the original 80GB HDD in my iMac G4 with a 240GB SSD.
The first major issue I resolved was successfully burning a new Mac OSX Leopard Install DVD.
Not only does Apple not publically allow for downloading the official install image (paid Dev account required) but the DVD image I can find on the way back machine requires a dual layer DVD which my internal iMac G4 drive can’t read or right.
I’m doing a test install on the original HDD right now.