I want to make an interesting addition to this discussion. I have bringing my HPX370 P2 camera for my NBC News jobs. Most of the news department has gone P2 (the local affiliate here and elsewhere have already been primarily P2 for the last 4 years at least), and I just happened to have the same. Before that, it was HDCAM tape cameras with a Nano Flash. It's been really convenient, I just bring a P2 card to the satellite truck and feed. I have had no problem getting shallow depth of field by getting creative with my ND filters and opening up during my live shots and interviews. Also, I have plenty of light during that time. There have been some night shifts where I had to crank the gain up of course. Overall, with good light, I have provided a nice, clean, HD picture. FYI, I do NOT use the stock lens on my HPX370, I have the highest end 1/3 inch lens money can buy for the camera, with a doubler, which makes a BIG difference in picture quality. For a Nightly News Interview, I used my HDX900 with a Nano Flash for the interviewee, and my HPX370 for the reporter. I have them matched up color wise with the scene files.
The only catch is that I can't charge as much for my HPX370 off of the freelance rate book. Therefore, I have decided to start bringing my HDX900 with a Nano Flash instead. The satellite truck still has a Nano Flash for feeds, so it won't slow me down. I usually have the pre-record buffer on in both the camera and the Nano Flash and the heads on standby if it's a spot news situation.
I have also been still using my C300 for most of my corporate shoots and feature stories. It's still a very popular camera. The Sony FS7 is coming in a close second. For now, I am renting this camera as needed, since I am saving money for other things. I'm really liking the FS7. I think you have to have more support and be a little more careful with PL and ENG zooms, but it's a really nice piece of kit.