I've just got my MacPro and am about to start installing Windows. I've got three 300GB drives on here all formatted in NTFS. I need to go through them, sort them out and then reformat the drives in a file system that's readable by OS X and Windows. OS X says that you can only format 32GB drives with FAT32 although I'm sure that's not correct. A large chunk of the data is video content, I don't think I have many (if any) files over the FAT32 maximum file size limit. Do you reckon FAT32 would be the way to go?