I'm no expert on DVD recorders, having never used one, but you can record from any source so long as it is analog. Of course, it will only be in stereo since there are no multi-channel recorders that I have ever heard of.
There are combined harddisc/dvd-recorders out there. That means first you record everything on the built-in harddisc, then you can edit it if you want (commercials etc.) and then burn it onto a dvd. I know Yamaha makes one that has had some pretty good reviews, and Pioneer als has some models. Should cost you around 1000$ I think. Maybe you can use one of those.....