Flickr user Nebarnix posted an awesome gallery of high-speed photo eye-candy -High speed photography. If anyone has any requests I'd be happy to blow it up for you!
Most of these photos are taken with a special flash unit that uses a high voltage arc in air as the light source. The flash of light lasts only 500 nanoseconds! - High-speed photography on Flickr [via NOTCOT]
High-Speed Photography Kit Version 4
http://blog.makezine.com/archive/2008/08/highspeed_photo_gallery.html