OK, I will be dedicating an external 250 GB 2.5" USB drive for this. Slower, but the only one that I can erase/format now.
Is there an advantage to taking the time to put Mac OX on the external first? Or simply run SD! to copy my internal files...
Also, what is the benefit of simply copying a disk image from the internal HD to the external, then restoring back to the new internal?
sorry if these are answered elsewhere