I haven't kept up with developments like this over the last couple of years, but I have done a lot of commercial and personal video. The new DSLRs with video s

I haven't kept up with developments like this over the last couple of years, but I have done a lot of commercial and personal video. The new DSLRs with video seem like a great addition to anyone's tool set. Question: _Regular_ video cameras don't allow "through the lens" focusing either. You focus by looking through an electronic view finder or by watching a monitor hooked up to an external video source from the camera. Is there not such for the DSLRs? If not, hey, great market opportunity...