not overly sure as the best route with a wireles, think you can just set up shared folders so that your 2nd system can see the appropriate file.
When moving around larger files myself i use winrar to compact them and use the option to split the files so they fit on a cd. The end result in your case would be files that would fit over 3 cd's, copy all those files to one diretory, right click on one of the files an extract and it will piece it all back together for you![]()