As a student, I may not be the best to answer this but here it goes.
First question: Does it have to be both a DVD recorder AND burner?
Second question (if first answer is no): Do you or the church own a computer with DVD burning capabilities?
If answer to the second question is "no" disregard what I am writing about below.
If the answer to the first question is "no" I would go and get two (or three) decent video cameras (same kind, brand, specs, ect.) so that there is no difference in the video itself with color or sound and video editing software (Sony Vegas, or Adobe for PC and Final Cut Pro or
Express for
Mac). After recording put the video on the computer and import it into one of the video editor, and I'll stop there since it seems like you know the rest. If not I can post some more.
*Note the reason I say two or three cameras (and you can get a pretty decent camara for $100) is because sometimes people get in front of them or there's a better angle for a particular moment at a different position that would have been missed otherwise.
Hope this was somewhat helpful.
Wess