Help: CoverFlow

Does anyone know of a tool for Mac -or- PC that just isolates the songs on your iTunes library that don't have an image associated?

Or something that searches a different place for you?

And something is deeply wrong w/ the one iTunes searches by default-- I thought it was the iTunes store, but some of the matches it has made make me think it's Gracenote... b/c people screw with Gracenote. *sigh*

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