two quick hits:
i had thought about writing a stepchart for DSR Squared to "Herr Barr" by Chris Clark, but it turns out that the track has too much BPM variance to make it useable.
There was a contest for video submissions for the song via something called the Radar Festival, and the [winning video is absolutely fantastic].
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In case people missed it from reading my long post on relationships, i hid in there a video link that erica had posted on her LJ that talks about [imagining the tenth dimension]. Anyone who has ever watched Back To The Future understands the basic principles behind the fourth and maybe the fifth dimensions, and the concepts aren't very startling or new, but it's neat anyway because of how well it's all depicted and described in layman's terms.
The caveat, of course, is that the concept of dimensions beyond even the third dimension is necessarily constrained by what it is we comprehend and that frame of reference has the potential to be flawed. i don't have much time to get into a deep discussion about that.