This is an old revision of the document!
since we are using this mac laptop as the dedicated reprap machine, this page will contain some rants about dealing with the ppc peculiarity. first up, java. the ubuntu java page suggests using the IBM jdk. Hint: the package you want to install (after adding the medibuntu repository and key) is ibm-j2sdk1.5.
you also need the following packages (further details may ba found at http://packages.ubuntu.com/)
the j3d source