I want to buy a nice home theater receiver... and can't decide between the following brands: Denon- from I was told... voted the best in home audio year after year... Pioneer Elite (THX) Are they good, or just good marketing? Onkyo (THX) Funny name, but maybe one of the most under-rated brands out there? and believe it or not... Sony's "ES" line... someone at "the Good Guys" did a demo for me, and I have to admit... I was really impressed. My price range is around $500-$700 (on-line price that is...) ..and if any of you have ever made a purchase on-line... give me some advices to what is a good (and trust worthy) site... thanks in advance for you reply.