Hi everyone, I am basically looking for opinions. I have an iMac with 500GB internal. I just bought a 1TB external HD and would like to partition it so I can use it for both Time Machine and SuperDuper. The question is how much for each do I allocate for each? I want a lot of Time Machine backups, but I also want enough space for SuperDuper. I am currently using 120GB of my 500GB internal drive. I am thinking of doing 250gb for SuperDuper, and 750GB for Time Machine. The only problem is that what if I start to fill up my internal and I run out of room to do a full backup using SuperDuper to the 250GB I set aside for SuperDuper. So, the answer to that would be to split the external in half and I will never run out of room for SuperDuper but now I am limited to 500GB for Time Machine. So, how would you partition your new HD?