Wondered what you all thought on the best set-up for a 3 drive system. Here's what I had in mind and my reasons - interested in your thoughts! Drive 1 250GB, 7200 rpm 16mb Cache My intention was to use this for the OS and apps, create a partition and then use time machine to keep 'back ups' of it (is that possible?) - so use it like windows restore if needed. Drives 2 + 3 500GB, 7200 rpm 16mb (may even be 32mb) cache I thought I'd set this up as Raid 1/mirror, so I have two copies. Move my 'home' folder here (how do I do that btw?) So all my emails, documents and files will go here. Anything that I need back ups of will be backed up to DVD. Why This set up is more for convenience than anything else, just means that when I go away I can take one of the raid drives with me or leave it down my mums, so my data is relatively safe. And with the OS on a separate drive, it means if I ever need to reinstall the os (after perhaps it getting totally screwed up) all my files/emails etc are untouched. However I'm fairly new to Macs so am open to suggestions!