I was just wondering what the maximum amount of memory my PB G4 12" 867Mhz can take. If I go to the Apple website I can get a maximum of 512 memory module to replace the 128MB one already in my 'book. However, I just checked Kingston Technology's website and saw that there is 1GB module that could fit my PB. Is this true? Can I get a gig of RAM? Or are there other issues to worry about.