I have an external 1TB harddrive which I'd like to use to backup files created in OSx and fusion/bootcamp. Is it possible to set this up to happen automatically in time machine for both systems? Does the hard drive need to be formatted in a completely in OSx format (what do you call this format?) or split formatted between OSx and Windows(NTFS or FAT32)? Is it possible to connect my PC and directly transfer files to my MacBook and then to the external drive?