The songs you have bought from the itunes store, you can directly download them into the computer without having to pay for it again. The following website will walk you through that.
Unfortunately, Apple does not allow us to transfer the non purchases from the ipod to the computer. So we need to depend on third party softwares.
The following software might help
Try the free trial version first.
Hope this helps. Let me know if you find any difficulty.
Thanks for your reply. I knew that I could get apple to download recent purchases. I have 48 Gigs of music, most of which came from my private collection. I think I know an alternate solution to this problem, thanks