Regionless DVD players

I'm probably going to buy a DVD player in the relatively near future. I would like it to be regionless if at all possible. (I do not own any DVDs, nor do I expect that I will often play out-of-region DVDs; I am merely irritated by the whole concept of regioning and want to do what I can to subvert it.) So, I am looking for recommendations for regionless DVD players. Anyone have one that they like or hate? And why?