So far I am in love with this RAW video hack in Magic Lantern. The quality is just unbelievable coming out of the 5Dmk3. Sadly after compression for the web the quality does take a small hit, but it still looks amazing.
Again these are straight out of the camera, no added fliters or exposure changes. All shot natural room lighting with only white balance being changed in post.
Thanks giving footage ISO raged between 1000 and 3200. The footage of Arlo was all 6400 ISO. There is some noticeable grain at 6400 but its still VERY usable.