Be creative with it
Get a nice copmuter with a video capture card, DVD burner and some good video editing software.
then record your video into the computer in segments. In other words, your video tapes probably have two or three different events on them - birthday, followed by easter egg hunting, followed by snow ball fight, etc. So when recording to the computer, you start and stop the recording on each segment, leaving you with three video files in the example above.
then with your video editing software, combine them all with fade in and titles, and what not. Maybe integrate digital still pictures between the video files that show time prgression, or filler, overlay with various music files over the still pictures and maybe the video files when the original sound is not good.
Then the computer can put it all together in one file, for output onto a DVD.
Takes a little longer then just copying directly from tape to dvd, but it comes out a whole lot better (well, in my opinion).
For information - the video conversion I am currently working on is from 3 video cassettes with about 1.5 hours total video time and about 100 digital pictures and it has taken me about 8 hours so far, figure I have another 4 more hours to go to get it all integrated. Then it will be time to hit the "make movie" button and the computer will then take about 2 hours to "create" the movie but I don't need to be there for that. 15 minutes per DVD to burn, and 15 minutes per DVD to label and viola. Not that quick, but it looks a little better than a direct conversion, plus I have a copy on the hard drive as well as DVD.