for a relative newbie to home theater. I want to purchase one of the following receivers: Denon 3803, Onkyo 900 or Pioneer 45, maybe 47. I plan on using the receiver with Klipsch speakers to create a 7.1 system. My tv is an older 36" that has only (1) s-video input. The majority of use would be for home theater. I know that the Denon has 100 mz band width, but what about the Onkyo & Pioneer. I will ultimately update to hdtv so I want a receiver that will handle all formats. I will also be conecting a dvd player, vcr & satellite dish to the tv. Which one of these receivers would be of greatest benefit? I haven't been able to demo the Denon or the Onkyo yet. I have heard the Pioneer 45 and was very impressed. Do the Pioneer & Onkyo offer upcoversion?