Remove iTunes Library from disk.

Hi,

I have created a few libraries using this method:

http://support.apple.com/kb/HT1589

I was wondering if removing a library i no longer need is just simply deleting the folder from disk? Or is there something else i need to do?

Also, i never use iPhoto, but was wondering if i used iPhoto, the photos will also be stored in the iTunes library location? iMovie as well?