I think you can do the actual recording without any pc/ mac. You'll need a vhs player and a dvd recorder. Instead of plugging the vhs player into a tv, plug it into the input of the dvd player, and press record on the dvd recorder. Then when you have the data on the dvd discs, use iMovie for editing/ finishing up the rough edges. I haven't tried this but can't see why it wouldn't work (unless there is no input on the back of the dvd player.)
b.