Dr. (If you are a doctor...)
Aside from that whole conversation above, what you are doing will, sooner or later, lead to extra stress in your life. The iPod was never intended as the primary storage device for your music. At some point you will lose it all. How can I say that with a straight face? Because in the troubleshooting tree for every single iPod error is the step "restore the iPod". Once you get to that point, all the music on the iPod will be deleted. And at that point it is unlikely you will be able to do a backup as the iPod is not responding.
Once it is restored, it will look to your iTunes library to repopulate itself...only to find no music there. Then you are back here in a foul mood moaning about how evil iTunes is and that Steve Jobs should be in jail, and that nothing is going to bring back Jericho on CBS. (well, you get the picture)
I'm asking you to prevent all that (except maybe the Jericho bit. It's done. CBS won't bring it back again). Please, please, please make a backup of your music. I'd love to say keep it on your computer, but I know that's a losing argument. Maybe pick up a cheap external drive? I got a 500GB USB for well under a hundred. Chump change next to what we all paid for our Touches. At least, burn all that music to DVDs. There are some great apps out there that can help you get the music off the iPod so you can do this.
Anything so what when you are faced with the dread restore you will be able to easily reload the iPod. Without spending hours waiting for your optical drive to re-process all the albums. Please?