Spodlight

Okay, so we all know that you can make Spotlight index the invisible folder of music / videos on your iPod(s) by running a bit of instructions via the Terminal, but for those Terminal-phobic amongst you, there's always Spodlight. Launch Spodlight, select your iPod, click Index, and away it goes!

After Spodlight finishes indexing your iPod, you can quit the program and whenever you like simply launch Spotlight and start a search to find files. Due to the fun four letter alphanumeric numbering system on your iPod, it might be a little difficult to spot some of those files with Spotlight, but broad sweeping searches by file type work like a charm.