I have some questions about partitioning a MyBook Essential 750 I just purchases and I havn't been able to find the answers in the forums 1. Adding the fdisk support--for making the drive also work with windows. Is their a downside to doing this? Does it slow the drive down on the Mac. I will primarily use this drive with my iBook but maybe if I lend it to a friend with a PC? 2. Apple Partition Map or GUID Partition Map--I am going to purchase a new laptop in the next year, will I have to remake the partition map? 3. Journalling or not? Is it safer to use journaling, and does it take up a lot of room? I will be using this drive mainly for movie storage and as a backup drive. Thanks for the help!