To explain the whole panning/autofocus thing a bit more... i would like to be able to track a walking puppet across a 16 foot set and maintain focus on them whether they fall out of my line of focus or not... the more we talk about it ...the more i realize i will probably have to use some form of manual focus.... so im working on that solution
Just an aside, but remember that tracking/panning are two different things. With a pan, the camera is stationary and pivots (usually horizontally). A tracking shot involves moving the camera's position. The solution for both is to use a wide angle lens and shallow depth of field.
You should be able to pan across (or track through) a 16 foot wide set and keep everything in focus if you have a wide angle lens and your aperture is stopped down enough to give you sufficient depth of field. If you can't do that, you are either doing something wrong or there is an element of the shot(s) that hasn't been explained.
What f-stop are you typically shooting at? It really sounds like you are getting shallow depth of field because you're shooting with the aperture relatively wide open. If so, just stop down the aperture until you have enough depth of field.
When you want shallow depth of field for stylistic reasons, just switch to a longer lens (or Zoom in if you're using a kit lens). You shouldn't have to re-light scenes for depth of field either (which you mentioned doing earlier). Just change your lens and/or your F-stop.
I just want a quality body that will:
1- not shrink resolution on the field monitors during recording . As puppeteers this is HUGE!! We live and die by our monitored image and its terribly distracting and annoying to have it squashed and stretched (have u noticed this in your shooting?)
2- doesnt heat up- As we discussed ive dealt with this before
3- allow me to use my prime lenses and demonstrate their full potential
4- some good auto features for run and gun
5- deliver a codec my present computer can deal with. though it may not be ready for the silver screen at 4k it will still look better than most puppet videos on youtube.
Ive studied up even more on 4k and would love to implement it into our stuff (if only to record at 4k and downgrade it to 1080 in post) but at this point my computer (though brand new) didnt have the ram it toted on the packaged (4 gigs of the memory is squared away for other uses and is not accessable for video) I may end up investing in an outboard video card or something soon...
In order:
1. I don't completely understand what you're describing, but the 60D does drop its output from 1080p to 480SD when recording. The output image is technically 4:3 because of the sensor size, but it should appear on screen during recording cropped to 16:9 (the overlays should appear over the black bars that crop the image).
If you are getting a very noticeably squashed or stretched image, I would suspect the problem is either your monitors, or possibly an output setting on the camera itself (it's impossible to tell without seeing it myself). Double check all settings on the camera and monitor to make sure something is not amiss. I've shot puppets on the 60D with no issues, aside from the drop in resolution while recording.
The 7D is the best Canon camera in terms of output to a monitor under $2000 imho.
2. Re: heat, I haven't ever experienced that with the 60D even when shooting all day, but it does seem to be a problem with some DSLRs. Are you using generic batteries? They sometimes cause problems because the 60D batteries are chipped. Make sure your Canon firmware is up-to-date. Also, turn the camera off when not in use. Live view mode tends to heat up cameras a lot, and constantly outputting an external signal can generate a lot of heat too. If your camera is always overheating and under warranty, I would get it looked at. That shouldn't be happening if you are using it correctly.
The 60D is actually one of the best Canon DSLRs in terms of not overheating. For example, the 7D is much more likely to overheat because of its dual processors and built-in LCD screen.
3. From a technical standpoint, you can put your lenses on any camera with an EF lens mount. Don't worry about demonstrating the full potential of your lenses, just worry about how to best use them to tell your story visually.
4. Have a look at the 70D. The autofocus is supposed to be pretty good.
Keep in mind there is no one camera perfect for every situation. All cameras and have pros and cons. For example, the 60D has better audio than the 7D, but the 7D is better built and offers superior video output.
Some of your needs are in direct conflict with each other. A good interchangeable lens camera is often not good for "run and gun" style shooting. Most pros use different cameras for different purposes. For a versatile, relatively new DSLR that meets most of your needs I would look at either the 70D or the 5D Mark 3.
Honestly, the 60D is solid and you have good lenses. My advice would be to figure out the video output problem (be sure to identify the real cause of the problem before spending money on a solution) and overheating issue. Then focus on learning how to best use the 60D to its full potential.