Hi Robert,
At this stage , you best option (which is what I do) is to zip up your entire show directory (I have the same for directory for the media as well) , and then unzip on the other computer .
You can worry later about cleaning up the redundant stuff.
If at all you have anything outside the show directory e.g. any inputs (such as LOR / LSP sequences, purchased sequences , iseq files , images, faces etc) - then back those up as well.