one camera that has not been mentioned here is the sony fs100...same super 35 chip as the f3...shoots to sd card or 4:2:2 via HDMI...because of the short flange it can accept pretty much any lens made via adapters....and it costs under 5000$...
i think we will see some fun stuff coming out in the next year or two...
We have the fs100 with the plan on using it beside our reds, as a crash cam, small handheld and for the moments we need autofocus. We added the kit lens and a few of the fast Zeiss A mount zooms with the Sony adapter.
All I can tell you is to try it before your buy it.
I love the form factor, somewhat like a hasselblad v with a articulating viewfinder, the autofocus is good, the Zeiss lenses superb.
It has large xlr inputs, headphone jacks, sound bars and a pretty good but small lcd.
The downside is the camera's file. It blows highlights quickly and not that pretty. It also is hard to hit skintones with under any lighting we've tried.
In fact grading this file regardless of the setting has been difficult for us. There are a lot of color, tone setting . . . a some canned and user preset profiles, including a cinetone look much like the flat 5d2 and Canon 300 look that is made for post production grading.
Still, I just can't seem to get the file to look pretty like film, as it has a cast to it and I know this is very subjective . . . the Sony file regardless of frame rate and shutter is very video like to me. Not the worst, but certainly not something someone would say, wow what film did you use?
The last issue I have with the camera is the many little buttons for settings, some confusing some require the hand-eye coordination of a brain surgeon. Just setting the aperture on the side of the camera takes very careful turns and push to use, push to lock but don't push and turn or it goes to AE.
It's a great idea, could have been a 5d2/3 killer if only it shot a better file, but once again that is very subjective.
Try it before you buy it.