Hey, with these new updates to the macbook i am trying to decide whether to get the bottom line white or the top line white. To me, the only considerable difference between the two is the option of Superdrive or Combodrive. Whilst the Superdrive might be handy to have, it really isnt a requirement for me. I have a PC which i use for burning dvd's and backing up software (transfered over via USB). The only time that i would ever need a Superdrive is to burn a DVD that i have made in iMovie or iDVD. So THE QUESTION IS.....what type of file does iDVD/iMovie output in? And would it be possible for me to burn this file into a DVD on a PC. I'd transfer the file to the PC via an external hard drive. I really cant substantiate the $300 Australian dollars difference between the two systems. I hardly ever burn DVD's as it is and i dont think that i'd use iDVD that often anways. But yeah, thanks for the help! I've had a bit of a look around and i cnt find much....so your help is highly appreciated! Cheers!!