Panasonic AJ-hdx900 or Sony xdcam f350???

Cameras, like lenses, are project specific so it depends on your project.

I think you will see both of these cameras working in the field over the next few years. I chose the 350 because I felt the disk based workflow offered some very nice features. I also, already had a high end 1/2" SD broadcast lens that I could start using with the camera immediately.

The entry costs for the Panasonic 900 would have been higher for me. Ironically, I had been shooting with a Panasonic DVCPro camera when I switched to XDCAM HD. But the jump to HD would mean buying a new deck or finding a new workflow anyway. I think the XDCAM disk system offers me more economical options.

Because the disk is laser based I can forego a new deck for a while and capture from the camera or move files directly to a hard drive. With a tape based system that was not an option over the long haul. I have not had the camera long enough to make an in depth response, but so far I am very happy with the Sony 350.