If you're just trying to get stuff submitted to the wire. you don't have to be TOO picky with the camera choice. so as long as you can get a clear image. Which, unless you're recording with a potato, most of todays cameras can get you. Even a simple $100 point and shoot. When you process your video in whatever editor you use, just make sure that it doesn't distort the image. One of the bigger problems you might have with recording is audio. 99.9% of the time, the camera you use will produce pretty horrible audio. So especially if you're going to go with a cheap camera, I would look into an external audio recorder. Or at least find a camera that allows you to adjust the settings of the mic to make it strong enough. and don't be afraid to play around to find the best option. you might need music playing in the background to block out any additional fuzz... that's sort of the make shift fix.
The most important thing when making a video is your production. If you get the right angles, right lighting, and are clear with what you have to say, it should do well... Most of the time when I'm watching an explanation. I just want it to be clear, with little distraction. different camera angles do help. You could use a second camera man rather than a tripod. but unless you have some way to keep that camera steady, it'll usually cause you more harm than it does good.
