Export Pro

Select the song(s) you want to convert to QuickTime, then go:

File->Export->QuickTime...

Pick a folder for the destination.

Each song will then be exported using Animation compressor for video, and uncompressed 44HKz 16bit Stereo audio.

You can then double click this resulting file to open it in QuickTime Player.

To get it onto your Video iPod

You must have QuickTime Pro.

From QuickTime Player, File->Export and pick iPod. The resulting file will then open with iTunes. Drag the file from iTunes to your iPod.