Transfering Birdseye images

I have started downloading some Birdseye images to my PC, looks great so far for the small amount I have.

I plan to upgrade my PC in a few months time - how do I transfer the files to my new machine? Or even to my existing laptop? I am hesitant to download any more images, we have capped data over here and would hate to have to do it all over again.

Andy