A little background first. I'm getting ready to buy a 55" Mitsubishi widescreen. Since I'm getting this TV, I figured its time to put my 11year old Pioneer VSX3600 to bedroom duty. My problem is that I'm not too intelligent when it comes to all the current connections and hookup features of HDTV's and home theater recievers. This is where you guys come in. I was looking at the Onkyo 575x, but I decided I really want DPLII, so now I'm thinking about the 595. I keep hearinig about this component video switching and how it is very useful for home theater and HDTV. I have no clue what it is or when you'd use it, so should I pay extra right now for the 696 to get that feature? That is the only reason I'd upgrade to the 696. Is it worth the upgrade? Does the 575x have that feature? The rest of my system consists of Polk RT8's, passive Cerwin Vega 10" sub and Bose 201 surrounds. Eventually I'll upgrade the sub to an amplified sub. When I get the new reciever I'll get a center channel and will probably change out the surrounds (put the 201's and old Pioneer reciever in my room). I'll also be getting a DVD player and a new cd changer. So, with all this equipment I've listed (add a Playstation 2 in there), exactly what connections will I need and what reciever will work the best for me?