I'm testing an EMCCD camera. This is a video of fluorescently labeled DNA through a 100x epi-fluorescence microscope.
Or you can try a slightly better quality wmv-download (82 Mb)
Once we've had time to practice some more, it should look much cooler, something like these DNA-curtains, or DNA-ejection from bacteriophage lambda. But it's a start.
Also on a youtube near you: molecular motors, TIRFM, optical tweezers setup animation,