Digital Cinecamera with 500$?

I need a digital camcorder (or other type) for shoot movie with interchangeable lens, manual controls as a film super35mm cinecamera (sensitive area about 24x18mm).

I have 7inches monitors, external microphones and various canon ef, m42, nikon f, yashica/contax, arri pl lens and i like to adapt into various digital bodies.
I would like to buy a good used digital body for 500 dollars if possible that record good video files.

Added (1). Lare, Thank you very much. Mmm i see, they are not user friendly. Sony NEX, Canon EOS cameras (7D) have a similar sensor (23.4x15.6mm, 22.3x14.9mm) that can be good or better look into 16mm systems?

Ok, this is one case where a little knowledge is dangerous.first of all the frame size for super35 is 24.9mm x 14mm when shooting 3 perf film at 16x9 WS. The aspect ratio you show is not even wide screen, its old fashioned television 4:3 full screen. I'm quite sure you don't want that. The camcorders that have 24.9 x 14 mm CCD sensors are Arriflex Alexa, Sony CineAlta F65/F35, Canon C300 and Red Epic. Of this group, the Canon C300 is the absolute cheapest, at $16, 000 with no lens. Good news is it does work with Canon EF series lenses. The CineAlta will mount the Arri PL lens. These cameras have several things in common, one being the monitor output is 1.5 GBPS HD-sdi bnc. Are you sure your 7 inch monitors are made for this? You need to start saving your pennies if you plan on shooting super35 size cameras.

Go with Panasonic SDR-T76 Camcorder, it is good Camcorder, it is one standard definition light weighted camera which offers great quality as well as clarity. This camcorder features 33mm wide-angle Panasonic lens.

Check on the Kodak Zi8. I have that one and it does beautifully. You can change between 1080p, 720p 60FPS, 720p 30FPS, and SD videos. It even has 5.1MP stills, but I don't use that. The best thing about it is the external mic jack, which allows you to use a better microphone, which Flip cameras do not have. As well as an SD card slot, which allows countless hours of recording.