Moving your itunes libary to a new computer

I have reinstalled my laptop, and I want to move my music and video files over. I have a backup of all my CDs... so it is more than 100gb I want to import. I don't want them to be copied over to my laptop, but I want the files to be available when my external drive is connected. To do this I used iTunes Library Updater. This nice tool compares the current library with the folders you want it to check, and then syncs in the new media files. This is good when you want to import 24000 files. A normal "add folder" in iTunes will make the application "not respond".

Nice features like "Get Album Art" is next!