I don't know if there are any Mac users here or not? But you used one word that scares me a little. You don't want to "stream" your old videos anywhere if you want to retain some quality. Streaming is for getting low quality video on to the Internet using the USB port on the 740. None of my D8 camcorders have the streaming video feature so I don't know just how it works? But you should be using the firewire port for moving your DV to your Mac. Forget about using streaming for that purpose. I think the 740 should do everything the 350 will?

Dave