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I have a dedicated theatre room that will have 7.1 speakers, a projector, a receiver, high definition cable or satellite, a DVD player, a universal remote, and maybe a computer or gaming console. I've decided on the Sony VPL-VW100 projector, and have 5 speakers already that came with the house, but am missing 2 of the wall speakers and subwoofer. Right now I am trying to figure out what receiver to get and have a lot of questions. I tried reading reviews of receivers but I don't know anything about them so its tough to decide anything when the reviews sound like a foreign language.

It seems like the main difference between receivers is how much power they have per speaker and the types and number of inputs that they have. Another thing I have seen is that a lot of receivers say that they will upconvert standard DVDs to high definition, and that confuses me for 2 reasons. The first iisdon't understand how its possible to take a video shot with a low quality camera and turn it into a high definition video, and the second is what is the point of getting a receiver that can do it when a lot of the high def DVD players make the same claim?

Another question I have is about high definition video. I don't currently have it, but I've read that you have to get a high definition receiver, which you connect to your tv. Would any receiver that I buy take the place of that, or would I still need it and would connect from their receiver to mine?

My final question is about connecting your computer to a receiver. Most of these receivers don't seem to have a DVI input, so what should I look for in order get both the video and audio from my computer to the system? I'd be willing to spend up to $4,000 on the receiver, but don't want to spend that much if its not worth it. I'd really like to know what kinds of inputs I'll need, how much power I need per speaker, and any other factors I should be considering when buying a receiver. I see a lot of receivers have 2 or 3 HDMI inputs, that doesn't seem life enough all my inputs are going to use HDMI. Do you have any suggestions for what I should get?