OK, so I'm getting a new receiver and I think I will probably be getting a Denon 3806. . . BUT, I haven't completely gotten the ONKYO 803 or 901 out of my mind since it has the mysterious "THX" certification and I've had good experience with that brand. I am wondering just what kind of difference the THX cert would make between the Denon and Onkyo performance-wise. I have read the Audioholics explanation for THX and still am left not knowing. What do you all think about the differences and the value of the THX certs. I have read great reviews of the Denon, but there are far fewer reviews of the Onkyo so I don't really have any good way to make a determination of that. Any opinions or better yet knowledge would be great!