This article is the best I've seen yet on shooting video with the Nikon D5100:

digitaladvice.littlehole.net/archives/140

Just found this one also to add to any D5100 video users out there. There's any embedded Youtube tutorial which is straight forward.

I just picked up a D5100 as my secondary camera.

Setting Manual Exposure for Nikon D5100 in Movie Mode (http://www.learningdslrvideo.com/manual-exposure-nikon-d5100/)

Thanks for sharing the articles. I just bought a 5100 to replace my D100. I wanted something to improve my low light pictures and to be able to take video when I want to. A little easier to have 1 camera that I can do both with.

I was in the market to get one of the canons(t3i,etc) when I stumbled upon some nice video footage of the 5100 so now Im considering getting a 5200. Is the 5200 recommended for someone who is primarily into video? I know nikon are superb at photos but I dont know much about nikons for videos but some of the ones Ive seen were excellent.
thanks

From what I have read and seen the D5200 has excellent video.

Yeah the nikon looks really nice in the video. Do you have any complaints about the manual control of the nikon? Ive read some about that.

quite amazing that the sony alpha 77 don't get a mention iam sure the Nikon will have to go some to beat it at video I don't think people are aware how good this camera is!!

Yeah the nikon looks really nice in the video. Do you have any complaints about the manual control of the nikon? Ive read some about that.
The D5100 I set my exposure and use the AE-L, this locks the exposure. I've gotten use to it. I think on the D5200 this was resolved.

Jeff,
I shot video on an event last week for the first time with my 5100. I have a lot of video camera experience so using this and not taking stills, was new to me. I shot a dance concert just for testing purposes. I tried locking in the exposure but it still went into auto mode, I think it's because the curtain would open and close and I would adjust my focus. Any suggestions or tips? I tend to shoot dancing and DJs on stage and I like the idea that I can shoot some stills and also shoot video. Just take one camera. The stills part I'm good, the video I'm working on. Thanks in advance.

Place the camera in Manual. Go into 'Liveview" dial in your exposure and then hit the AE-L button. You may have to setup the "AE-L" button to be sure it locks exposure. I'll double check it when I get home tonight to make sure I'm not forgetting anything.

Thanks, I'll give it a try.