kinda late to the party, but honestly depends on what kinda video you'll be doing. A nice high end point and shoot could actually be better than a dslr in some cases. Something along the lines of a Sony HX9V, due to its excellent in camera stabilization. If you plan to run and gun this could be a good bet. It would take a lot more money to get the same stabilized shot using a dslr.
Doing video on a dslr kinda sucks. For reference, I have either tried or had actually owned the following Sony A33, Nikon D7000, Canon T3i, Canon 5dmkII. But honestly I would consider returning the D5100 for the Canon T2i or T3i.
You can not manually control the exposure of the video mode in the Nikon D5100, only in the D7000 and up. There are work arounds but why should you have to? Canon cameras can use Canon EF lenses as well as Nikon lenses with adapters. Nikon can not use Canon ef lenses. PS, you can not change the aperture of a nikon lens while the camera is in live mode. So you can not change the exposure while you're recording unless you have a manual aperture lens. You'd have to resort to changing shutter speed or ISO, kinda a bummer. +Magic lantern for canon cameras is awesome.
But if you're just starting out try this video from nikon
Doing video on a dslr kinda sucks. For reference, I have either tried or had actually owned the following Sony A33, Nikon D7000, Canon T3i, Canon 5dmkII. But honestly I would consider returning the D5100 for the Canon T2i or T3i.
You can not manually control the exposure of the video mode in the Nikon D5100, only in the D7000 and up. There are work arounds but why should you have to? Canon cameras can use Canon EF lenses as well as Nikon lenses with adapters. Nikon can not use Canon ef lenses. PS, you can not change the aperture of a nikon lens while the camera is in live mode. So you can not change the exposure while you're recording unless you have a manual aperture lens. You'd have to resort to changing shutter speed or ISO, kinda a bummer. +Magic lantern for canon cameras is awesome.
But if you're just starting out try this video from nikon







