iTunes to new laptop HELP

[Lost Angeles]

Just bought my own first computer a laptop and I’m unsure how to get my iTunes library onto it. At the moment I access my itunes library off our desktop and all the music is stored on an external hard drive. I want to get iTunes and all my music onto my laptop and use the external hard drive only as a back-up. I want the laptop to be the main way to access iTunes. Our house is networked.
Do I have to start again and copy all my music to the laptop and then into iTunes or is there a short cut I can use.
I have over 100Gb on my iPod and in iITunes and would prefer not to start again.

Thanks for any help.

 

[Lost Angeles]

To WHF - I apologise for multiple-postings of this but I have been unable to successfully post to this thread over the last couple of days but today it seems to be playing ok! In fact, too OK :dance:

 

[Anonymous]

Google is your friend! :dance:

http://support.apple.com/kb/HT4527