My Sony receiver died yesterday. It makes an awful noise and goes into protector mode when turned on. Anyway, after doing some research here I'm pretty much going to stay away from any of the Sonys. Any suggestions for a receiver under $500 ($400 - $500)? I looked at the Onkyo TX-SR602 and it looks good, but I don't know if the 85 watts/channel is enough. My room is about 20x25. Is this a good receiver? Any other suggestions out there? Thanks!