you can burn the songs you want to sync onto a CD and then download them to your iPod from the harddrive
Plug in your iPod and don't press "Sync".
It is not allowed.
You have to sync it because when you sync it go from your computer to your iPod but if you have an iPod touch you can download songs from your iPod's iTunes store.
No
how do I sync new IPOD to current computer library of music
You can't! Why would you think you could!
first thing is when you connect your ipod highlight your ipod and select music and check manually manage songs and there you go you can sync songs without syncing to that itunes library.
See links to Apple.com
Pretty simple. Download iTunes, plug in your iPod, and click "Sync" on the computer.
Plug ipod into computer and when it shows in Itunes, dont let it sync but click the name of the ipod and in the screen put a checkmark into "manually manage music and video"
If not an iOS device, you must sync with computer, then sync with other iPod.