New Camera. PD 170 or DSR-250?

Hi
Am considering getting a new camera. Been looking at the PD-170 and the DSR-250. Both will do what I need especially being able to embed a date-time stamp on the video itself.

How is the DV-cam video? Much better than a MiniDV? Full size DV-cam tapes are 2 hours or more which would be great not having to change tapes every 63 or 83 minutes.

The DSR-250 will also shoot MiniDV. So I'm not sure which way to go. If I stay with MiniDV then the PD-170 probably, but being able to shoot only 40 minutes or so of DV-Cam wouldn't do it for me.

Any suggestions or ideas?
Thanks
Allen