deb-ppc: X server debian packages ?

[Brendan J Simon <brendan.simon@ctam.com.au>]

I've got a PowerMac G4 at work and am thinking of buying a PowerBook for
myself.  I have debian running very nicely on the G4 but I haven't got X
running.  I've installed task-x-window-system but that is all.  I read
on the mailing lists that XFree86 4.X and/or xpmac is required.  Is this
correct ?

I can't find any of these as debian packages.  Do I have to download
tarballs (yuk) or are they some deb packages hiding somewhere ?

Do the G4 and PowerBook use the same X servers ?
If not, what is the best X server for the G4 and the PowerBook ?

Thanks,
Brendan Simon.