I would think you could in Premiere Pro 2.0 as well. The only catch might be that you have to render out one or the other. So if you're in DVC Pro timeline and you put in DV clips then those will need to be rendered. And the same the other way, if you're in a DV timeline and add in DVC Pro clips those will need the rendering. Cutting them together on the same timeline without any rendering, that I don't know about in Premiere.