Holle Longland.......I've another possible suggestion .....
When you get your new pc .......and its up and running .....simply remove the hard drive from your old one and install it in the new one as a slave ..........then you could transfer all the data......( not the operating system ) to the new machines hard drive and then wipe the old hard drive clean ........format it and you would have a nice clean empty hard drive .
This is a simple operation.........might take 1/2 hour to make the switch......
Then you could leave it in your new pc or put it back in the old one .....
dl65