Hi, I am in the market for a new AV processor, and I like the idea of using it to switch AV video sources, which I currently do with my amp (but only over composite ). There is no way I can afford an amp with HDMI or DVI on them, so the next best thing would be component inputs, of which I know there are plenty. Now, that's about as much as I know about the technology behind component. I know that many DVD players do either progressive scan, or upscaling to HD resolutions via their component outputs, so, here's my question.... Do I need an amp that can do progressive scan, or upscaling via its component inputs and output, or is it basically just a signal that it receives, and then spits back out again? I guess on that note would you recommend ever using the video switching capabilities of amps or are direct connections to the back of the TV better?