Powerpc distro suggestions

[Becker, Rob]

I'm looking to build a LTSP (http://www.ltsp.org) server out of a G3
mac.  Does anyone have suggestions as to a good mirror to obtain the
Mandrake PPC ISOs?  How about Debian PPC?  Does anyone have suggestions
as to a distro that works well on PPC macs?  I've primarily worked with
i386 boxes to date.  Any links, review, rants, raves, suggestions
greatly appreciated.
Thanks.
Rob