Looking a various DVD players I see that they range in price from $50 to $1500. But what features are really needed. I not looking to compete with the local Star theater, but my ideal system that I'm looking at is a infocus 4805 FP and a 7.1 reciever (make and model still TBD). So what features are an absolute must, what is nice to have, and what is just overkill? Oh and I'm asking because price is a major factor... Thanks!