I'm quite the noob when it comes to this, so all help will be appreciated
EDIT: I also want to keep in mind the quality in "low light" environments.
Canon recommends that a video camcorder is better. HDDSLR video can be amazing, but the basic camera does not come video ready as a camcorder does, rather, its just a small piece of a system needed to produce movies for the big screen or television programs and commercials.
I'd figure spending at least 3-5X times the cost of the body to add all the other needed equipment that will make the video live up to its potential. You will get better video with a good camcorder for less money at the low end.
One other reason for HDDSLR video is when you have only one camera and want to take a quick video on the spur of the moment. It might not be pro quality, but having the capability to capture something is nice.