Ok, so I'm looking to use a single external hard drive to use as a backup for my files between my two laptops. One MBP, one Dell. I need some help with how to partition the drives correctly. I will be moving files over 4GB, so FAT32 is not an option, plus the drive will be at least 500GB, and I know FAT32 sometimes has issues when partitioned that large. So FAT32 is out. What I'm looking to do is have half of the drive formatted to NTFS, and half formatted to HSF+. I have a little 2GB thumbdrive I've been trying to do it on, but no luck... Can someone detail the steps I need to follow to make this happen? Thanks.