Hi everyone. I used to be really into A/V equipment, but then I fell out of the loop for about 7 years. Now I'm going to update my toys and I need some advice. I am considering a few receivers and I am turning to the experts here. I've read numerous product reviews, but they are little help, as none of them really say anything bad about the products. I am considering the Denon 3803, the Pioneer Elite 45 or 43TX, or the Onkyo SR800 or NR900. Does anyone have advice on which of these would be my best bet? Are there others I should be considering? Also, I can find these cheaper online (eBay or e-tailers) than in your everyday electronics stores. The e-tailers seem reputable (meaning other consumers have rated them highly). Problem is I've heard rumblings about e-tailers changing the serial numbers, getting products that are an overseas version, etc. Is this really a serious problem? Thanks!