SD not deleting files on destination

[benschon]

I have a related partitioning question. I have an 80 GB main drive on my Mac Mini and a new 160 GB external drive that I plan to use for backup. Before I run my first copy using SuperDuper, should I partition the external drive in half, so that I can use 80 GB as backup space and the other 80 GB as "scratch paper" for big downloads and such? Or should I allocate the space differently? I understand that the "scratch" space will not be backed up by SuperDuper. That's OK with me.

Also, the external drive came pre-loaded with about 2 GB of utilities, freeware, etc. I'd like to set this stuff aside into the scratch space before I partition, and sort through it later. However, it looks like partitioning will wipe all files on the new drive. Is there a way to save this stuff without moving it to my main drive or burning it to CDs and then deleting the originals? Hmm.