I've got the oportunity to try one of these out and as they're held in high regard here, I'd just like to clarify a few things. Do they upscale themselves or do I need a DVD player to that? What is their PQ like (supposed to be really nice over component so I'm told)? Are the speakers detachable (if they are, the wife's gonna like that one!) Those are the main questions, any other info from owners/users would appreciated. Thanks.