After re-thermal pasting my PowerBook G4 12", temperatures got a bit better than before. Not amazingly better but that's understandable being it's PowerPC. Which then made me wonder if it's possible to lower the clock from 1.5ghz to 867mhz(base speed of Leopard) for better heat output? I'm not sure if energy preferences does this already, but it doesn't hurt to ask. Bonus Question, why do the iBook G4s take heat so much better than the "superior" PowerBook G4? I've always heard the metal casing is a help with dispersing heat but it seems like I'll hear the fans a lot less on my iBook G4 1.33ghz than a PB G4. Future Viewers: PB G4 12" Guts on #12!