I need help choosing a replacement receiver for my recently deceased Onkyo 875. I'm running a 5.1 system and have no plans to ever upgrade to 7.1. My speakers are Rocket 850's, Bigfoot, RS300's, & MFW-15 subwoofer. I use a PS3 to play Blu-Rays and stream media from my mediasmart server. The PS3 is my main entertainment device. I also have an Xbox 360 and Apple TV. My usage is about 50% gaming, 30% movies/tv, 20% music. I'm interested in sound quality over features. I was looking at the Denon 4311 or Yamaha RX-A3000 but am wondering if these are overkill for my needs. I had originally decided on the HK 7550HD, but after receiving two of these that were defective it's time to try something else. Any recommendations? I just want a quality product that's going to work when I receive it and last longer than 3 years. Thanks for your help.