I had already decided in favour of the Yamaha rxv 430 . Since I don't have optical output in my dvd, will the receiver have all the decoding options through the coaxial input? I mean, can I decode with the Yamaha rxv 430, with a signal through the coaxial, using dts,Prologic II and all the other features that it is claimed the receiverhas? Otherwise, I would have to change my mind..., or my dvd player! Then, reading reviews, I entered into Harman-Kardon, and it looks worth to listen! So now that I have found a web site where I can buy either theyamaha rxv 630 or the Harman-Kardon avr 2550, I want to listen to both, and then decide. I will go for one of them, I am sure. But anyway, which one would you prefer? I have heard that HK has better stereo, but also that it sounds very "American" (as far as I know, that means sounding in your face), and that Yamaha brings more Now, one question about speakers... Do you think that I could put two floorstanding speakers, one next to each side of the tv, instead of the central channel? Because then I will have 6 speakers in total (and waiting for the subwoofer, maybe for Christmas...), all the same (so perfect tonal matching). I guess I can buy only one also. Would it work the same with one next to the tv? Would I have problems because of lack of shielding? About the dvd, I have a cheap one, I didn't worry about it, when I bought it I simply wanted to have the possibility, now I want to have the QUALITY... Do you think I could hear it and see it, if I moved to something better? I tried with my cd-player to compare both, and I couldn't feel the difference, although the amplifier and speakers could also limit that... Once thing more... Is it worth to do bi-wiring? My Magnat Motion 60 came with that possibility, but I haven't explored it... Will be problematic if I use long cables? (for the rear speakers I guess I will need around 5-6 meters of cable from the amplifier to each of them...). Ok, lots of questions... I hope somebody will ask, I am not having much succeed, maybe I should apologize for my english, lack of politeness, or something... I wait for answers! Thank you!