One more call for Audyssey (or similarly auto x-over/Digital Room Correction enabled) electronics if good results from a sub/sat system are desired without real time/effort of set-up. The Harman Kardon HK 990 amp is a good alternative to an AVR in that you're buying 2 channels of high quality power amplification, rather than the 7 channels you'd get in an AVR. You're also not paying for the video capabilities, yet you get full subwoofer management and DRC.
New HK-990s are generally available <$1500 on e-bay.
Good Luck.
Marty
New HK-990s are generally available <$1500 on e-bay.
Good Luck.
Marty