Hey everyone, I recently upgraded my iMac's internal HD from 500GB to 1TB. I also have a 1 TB external HD that is partitioned into two drives, one 700 GB and the other 300. I used to use the 700GB partition for my time machine images, and the 300 GB partition for extra storage. Now that I upgraded my internal HD to 1TB, I realized I cannot partition my external for time machine anymore. However, I am unlikely to go over 500 GB on my internal HD anytime soon. If I have let's say, 250 GB of data used on my internal HD out of a max of 1TB, could I still use only 700GB on my external for Time Machine images? Or do I need at least 1TB of storage, regardless of how much of the internal hard drive is used up? Thanks a lot!