So I'm looking at buying one of these two receivers, but I'm not sure which. I can't seem to find a complete spec. list for either one. I really like the fact that the 608 upscales pretty much any signal to 1080p, but I read a review somewhere from a guy who said that he wasn't that impressed with it. So if any of you guys have this model could you tell me what you think of the Faroudja (or however the hell it's spelled) processing. Two other main questions I have which are kinda bugging me: 1.) The partial spec. list I found for the 608 on Cnet lists "HDMI switching" as one of its features as well as HDMI repeating, pass-through, and upscaling. My problem is the spec's for the 508 don't list "HDMI switching", only repeating and pass-through. So my question is, what does the "HDMI switching" feature do here and do I need it.? 2.) Does anybody know if one or both of these models have a sleep timer? Again I cant find anywhere that it says yes or no for either. I have a tendency to fall asleep with movies playing and I dont like leaving components, especially not $300 receivers, sitting on all night unnecessarily. Other than those things, i would really apreciate any other kind of opinions on either of the two, I really wanna buy the right one.