IMHO, having XLR ports and the ability to record directly to DVCAM tape are great features in and of themselves. But the PD170 also has higher vertical res, I believe the highest among all prosumer DV cameras (576 lines I believe), and it also comes with a wide angle lens 8)
I've heard conflicting accounts about how the VX only records 15 frames/sec, whereas the PD shoots real 30 progressive (NTSC). That's one thing I've always disliked about Sony, their frame rate and frame res trickery, there's always a catch with them, particularly with their new HDV cam, which I think is a nice camera, but I'd definitely consider my options (when more become available, like from Canon) in the HDV market before picking Sony...just my opinion :wink: