I hope I can do this. I just bought a Belkin WIFI router that has a network storage USB port on it. I just bought a WD 2Tb mybook external drive and hooked it in to the back of the router and installed the necessary software on my Dell laptop (XP) as well as the MBP running Leopard. I'm assuming I need to partition the drive using disk utilities because the Mac needs it to be formatted especially for it and XP needs to see a FAT file system. I guess I'm wondering if I can do it and what pitfalls I should expect. Does anyone have a step-by-step for this kind of setup? Do I need to format the Windoz partition with the Windoz 'puter? Just to be clear, I intend to use the drive for backing up both computers and for general storage of each of the two computers. Should I create four partitions? Is it possible to partition a partition after formatting the other partition to FAT32 or whatever?