I have one but I don´t recomend it, It´s not very hard convert a DVD to watch on the iPod, it is hard the first times, but you can do it with to programs, first step is dowload the DVD to the PC and the second convert that files to .mp4 or similar, the full transaction will take you about 6 hours,it´s better to download the films in itunes for ex. and the screen is really small! it´s not confortable to wach films.
But if your going to buy an Mp4 anyway I think it gots the best sound and video quality of all.