from your old computer to your new laptop. Don't use your iPod in the process.
http://lifehacker.com/229747/move-itunes-to-another-computer-and-keep-library-data-intact is useful.
If you want to read more: http://www.google.com/search?q=iTunes+transfer+library
I just bought new laptop. Is there anyway to transfer songs from the iPod to my computer? I am running Windows 7 and have downloaded iTunes