How can I move an iTunes library from one computer to another?
Yes, simply coping your entirely iTunes folder to an other computer will do the trick. This assumes all of your media is consolidated within the iTunes Media and iTunes Music folders. iTunes will assist in copying music to the folder and organizing a library if you would like to ensure all the media is portable when it comes time to transfer.

Do not forget to reauthorize the old computer if you are not going to use it regularly in case it crashes and one of your 5 slots is taken up. You can reset things after a lost computer, but it is somewhat time restricted to prevent abuse of that feature.