Woops, sorry forgot to say what I was backing up.
The external drives are almost filled up with data, .avi, .mp4, .mp3, etc.
The internal drive would be an actual image file, and yes there is some data on there too.
Basically I want to backup about 1TB of data, and the C image onto the one hard drive that I would be obtaining if all of this is possible.
I have not set up any partitions, the C: drive has 574GB free of 914GB
Hope that helps