I just bought a Western Digital My Book 1TB External HD. This drive has around 930gb of usable space and currently formatted as FAT. I plan to use this with time machine and also to be able to store movies and be able to use them cross platform, between windows and osx. I have ntfs 3-g and I was planning on formatted the larger partition to be used with time machine and the smaller one as NTFS to be used cross platform. My question is: Is my plan stated above the best way to do this? And also, what format does the larger partition need to be to be used with time machine? I just don't want to screw up my hard drive right after I got it. Any advice on how to partition this and what formats needed to be used would be great. Thanks in advance.