VSX-919AH: Cost vs. Performance is unmatched. Movies sound f@#$k'n amazing. My cd's are crystal and a little warm (with tweaks). Music imported and played from my PS3 through this smokes my cd player. PS3 is one of the best digital players under $1000.00.
Congrats on your recent additions.
Your 650 is a nice intro into the classic Pioneer SX series from the mid to late 70's. If you get a chance to score something from 850 on up you won't be disappointed. Later Pioneer gear is pretty good as well and the more modern HT receivers I think give you alot of bang for the buck. My VSX-815 has been a warhorse.