Wow....I had the exact same decision to make. I chose the Yamaha, due to better heat-management. I will be housing it in an enclosed cabinet, and the Onkyo would have run much too hot.

Also, through eBay I was able to get the V740 brand new for a final cost of $424 (which included $28 sales tax, since the seller and I are both located in Illinois). I should be receiving it at the end of the week.