$1900 – Canon 7D Kit (with EF 28-135mm F/3.5-5.6 IS lens)
The Canon 7D is Canon’s flagship crop frame camera. Like the T2i, it features 1080p recording at 30 and 24 fps, and 720p recording at 60 fps. A microphone input jack is available in addition to the built in mono mic. The 7D is priced higher than the T2i because it has a better build quality, can shoot still photos at 8 frames per second (18 MP), has weatherproofing, and has a better view finder among other things. Photography wise, it’s definitely a better camera.
Runner Up: $1500 – Nikon D300s (Body Only)
Again, if you have F-mount Nikon lenses, this would be an obvious solution to your video needs. The D300s features an external mic input, but like other Nikons is limited to 720p at 24 fps.