Get the HK 325, especially with the
special price that was just posted on this forum. You have until 7/31 to get this price and yes they're an authorized dealer. They're both good receivers with the HK being more musical and the Denon reportedly better from Home Theater. What kind of speakers will you be using?
I've got an HK 320 and have had no problems at all. Sounds great and has loads of power. The Logic 7 feature is a great bonus with HK receivers.