You can use an ipod to iTunes transfer program to help.I personally use Cucusoft iPhone/iTouch/iPod to Computer Transfer.It helps me to transfer my songs/videos/photos/playlists etc from ipod to my computer iTunes directly and safely.It works well for me,you can give it a try.
Free download it at: http://www.dvd-video-soft.com/ipodconverter/ipod-itouch-iphone-transfer.html

It even has step-by-step guide on the whole process.
Hope it helps.
You can keep asking on http://answers.yahoo.com or use http://www.ask.com to search more

I heard this iPod to iPod/Computer/iTunes works pretty good on this.
AVCWare iPod to iPod/Computer/iTunes Transfer can quickly and easily transfer your iPod songs, vdieos, photos, playlists, ratings, and other info directly to iTunes, transfer music and videos from any iPod back to any Windows computer. It can also transfer music and videos from your iPod to iPhone or other iPods.
http://ipod-tool.com/ipod-software/ipod-to-ipod-computer-itunes-transfer.html
All types of iPod/iPhone are supported. It saved me time and money.

I advise you to use it. Really save time.
You can search more at http://bing.com