Old-world - that got my interest since I once had an old world running NetBSD.
I can understand wanting to avoid the pain, but maybe this will be inspiring - it seems that you can run all the way up to Edgy according to these links on the old-world stuff: (how easy it is might be another matter.
https://help.ubuntu.com/community/In...n/OldWorldMacs
http://gonz.wordpress.com/2006/03/22...g3-wallstreet/
http://www.gifford.co.uk/~coredump/beigeg3.htm
Don't sweat the not-officially-supported deal. It only means that you can't get paid support (past dapper which is still lts), and show-stopper bugs in ppc won't stop the builds from happening on the mainstream architectures. Newer versions are still available, but not mentioned on the "official" download page, but are available via torrent or at the main repository in the "ports" sections.
I'd definitely back up your apt cache to a cd in case you want to reinstall Warty, now that the repos are hard to find for it....
At any rate, it is nice to see an old-world machine still being put to good use!
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20" G5 iMac - AMD64 HP desktop
http://www.ppclinux.info/