http://www.nikonchat.com/nikon-d5100-manual-video/
I am really stuck between two options for a new DSLR, Nikon D5100 or used T2i with accessories.?
the Nikon d5100 is new with a standard 18-55mm lens for $799, or a used Canon T2i with battery extension, 5 batteries, 55-250mm IS lens, and all the accessories that came with it (manual, strap) for $725. I really like the 5100 because of the effects and features and also the continuous auto focus for videos, but i am leaning towards the T2i because it is a good camera a little cheaper and comes with more moneys worth of accessories since its used.
Never buy a camera system on price. Once you choose a system, you will be using it for a few decades. Take your time and look to the future a little before you invest in any camera system
Features and quality of the sensor has to be what determines what you buy
Here is how those two cameras sensors compare
http://www.dxomark.com/index.php/Cameras/Compare-Camera-Sensors/Compare-cameras-side-by-side/(appareil1)/698%7C0/(appareil2)/645%7C0/(onglet)/0/(brand)/Nikon/(brand2)/Canon
If you expect to be shooting in low light (indoor sports is one such common situation) the Nikon sensor outperforms the Canon as you can see)
Nikon D5100 video test
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