They said it couldn't be done. Ready to download every last Madonna video, appearance, concert clip, and candid moment from YouTube? Here's how to do it. Once you've downloaded the software, it takes one step. Thanks go to TechCrunch for the tip.
Windows Users Download here.
Mac Users Download here. (Although you have to use Safari.)
Once you've downloaded the player (I had to download the latest version of Stuffit's Expander to "unstuff" the download) you double click the program, and navigate your web browser (Safari for macs) to the YouTube video site with the video you want (example) you want. Then click "Get Video"

After that, everything is automatic. You wait a few minutes while it downloads, then it "encodes" (whatever that is) then, VOILA! It's listed in your Movies and PodTube playlist on iTunes. Whenever you dock your iPod it will then be available.