Hey all, I'll be the first to say I'm a 10 year Mac user but not a cultist. I don't care what the machines look like inside or out, just how they perform. I was lucky enough to work on DVD interface elements for the Young Indiana Jones DVDs for LucasFilm on behalf of Terra Incognita Interactive last summer. Anyway, I did a sequence of 2.5D page-turns of Indy's journal using After Effects CS3. Lots of 3D, lots of precompositions, lots of Smart Objects, etc. (ie majorly processor intensive). So here's how thing have improved over 6 months: July 2007: Apple G5 Quad 2.5Ghz, 4.5GB RAM, After Effects CS3, 150GB Raptor eSATA (Sonnet Fusion 4) via Sonnet Tempo E4P card Render time: 10Hrs 11mins (fans blowing up, making room hot) January 2008: Apple mac pro Octo 3.0Ghz, 16Ghz OWC RAM, After Effects CS3 (default settings), 150GB Raptor (internal) Render time: 2Hrs 0min (quieter than my MBP, cool as a cucumber) The render took 18% as long. You can have your case redesigns and BluRay drives. This is what matters to me. I hope everyone benefits as much as I have! Good luck everyone!