I tried..
Debian
Gentoo
Mandrake

Results: No success

The image installer is trying to install linux through the cd instead the internet...
Gentoo does not recognise my Videocard (Radeon 8500) and so on.
..thats my first touch with LinuxPPC world.
I'm using in my i386 systems, Red Hat 7 & Mandrake 9.2 (for the people who think that I'm totally n00b).