I have done a lot of searching aorund here, but I just want to be sure. I just got a new 320 G MyBook Home external drive to use Time Machine. I want to be sure of what I need to format it as. I only have OS X now. I might in the future use Windows by using Parallels or VMware Fusion. I'm just not sure when (if) I'll do this. I will only back up Windows using Time Machine. Since Windows, for a better word, will be in OS X, can I use HFS+? Thanks in advance.