Well as some of you, I am planning on getting the 'New' iMac when it releases. I haven't bothered with Time machine before because I lacked an extra hard drive with the needed capacity. So my question is, what hard drives besides Apples Time Machine would you recommend? Brand? Portable or external? USB 3.0 or Firewire? All that good stuff. Seagate offer a 2TB desktop hard drive for $139(AU) or there's a Western Digital Elements Desk 2.5TB for $159(AU) Would it be advisable to use a desktop hard drive whats the power consumption like? I have been using 2 portable hard drives that use USB and they are still running smoothly. And finally which is a more robust and reliable option? I wish I could get the Apple Time Machine, but I feel that it is far too over priced when there are other cheaper options.