To answer the 2nd reply first, I have Acronis v8 but that does not let me partition the USB Drive... will v9?.
Second, If I use files, I cannot reformat my main drive and then make a mirror copy as I usually do with Acronis (I have another 120Gb drive which I also use) so that I can change the jumpers and the second drive immediately runs, or will it?
Bit stupid really aren't I. I should have kept all my drives the same size!
BTW - I'm not sure if Acronis will let you clone to seperate partitions, as opposed to drives. Clone a drive generally means just that - a physical drive. I don't know the latest versions, you'll have check the documentation.
Images are much simpler in that repect, and you don't have to partition to store images - though reloading an image takes longer.