Thank you all for the thoughtful responses. The Tascam unit I have is the DR680 and it was useful when I purchased it for recording several talking heads (3-5) at one time. I had some problems with the layout of the controls on it: They were not the most user friendly. Looking at the newer (and less expensive) models it seems like the things I wished were easier on the DR680 have been updated. I especially like the DR-60D and the DR-70D. I also appreciate the logical view that a videocamera is right for situations like Run n' Gun and a DSLR for video makes sense when you're setting up gear (lights, booms, etc.) for a narrative shoot. In the latter situation I can use a separate unit for higher quality audio with an out going to the camera. Thanks again.