I have a powerbook G4 1.22ghz with only 512mb ram. I was wondering if anyone with similar or lower specs has had any problems installing and running Leopard. I know with respect to system requirments I should be fine but I want to know real results in the real world from real world experience. Is your system faster or slower after installing 10.5? Has it been a dramatic improvement or could you have waited? Please any info would be helpfull.