As you probably know, we're big fans of DSLR video around here at Engadget. From shooting product demos, to producing the Engadget Show, if we shot the video, it was likely done with one of these single-lens cameras: they're convenient and capable of beautiful moving images but often leave much to be desired by way of form factor when it comes to video. While Canon and Nikon are slapping on articulating LCDs and calling it a day, Panasonic has upped the ante with its new AG-AF100 camera. Te