Have you listened to this combination at your dealer? You have chosen well respected equipment so the really important thing is how you think the system sounds.
The receiver has plenty of power and should be a great set up. Make sure to run the speaker calibration after you install your speakers to optimize the sound in your room and, enjoy!
Yes, I listened to it last weekend (with a 663, not the 463). It sounded good, but I wasn't blown away. A couple of other setups, such as Marantz (one of their entry level receivers and MT-20's, I think) sounded better - at a slightly higher price. I was quite surprised given the different speaker builds.
But I'm not convinced they had their setup of the Yamaha amp correct, and the guy helping me was young and full of "um's and ah's". Both he and I knew I don't know much about this, but his advice wasn't as clear cut as I'd hoped for.
I will try the same setup at another dealer this weekend - one recommended by a friend - and if I'm still not happy, I'll try the same speaker combo, probably with a Denon amp - another popular one here in SA.
I'm definitely looking forward to the move from a "one speaker TV" (for the last 20 years :->) to an entertaining home experience!
Well you seem to be doing your shopping correctly, the time you put in will pay off in the long run. I mean after 20 years a few more days won't hurt anything and if you plan to go another 20 years before the next upgrade, well you had best get it right hadn't you???
Let us know what you find out at this other dealer, I am very interested in Denon receivers and like to get all of the feedback I can.