welcome to the family
honestly i had two denon avrs and they didnt really pan out i just gave them both away and said im done with this companyi think you can go with onkyo or pioneer i think they have better avrs than denon i personally have the onkyo tx-sr 806 i love it.it has five hdmi inputs 130 watts per channel that more than enough for me but just give the the denon avr a try and if its not up cutting it go else where.
i dont know whats your buget but you can try one of these
http://www.bestbuy.com/site/Pioneer+-+770W+7.1-Ch.+3D+Pass+Through+A/V+Home+Theater+Receiver/9846378.p?id=1218183106808&skuId=9846378
or
http://www.bestbuy.com/site/Onkyo+-+700W+7.2-Ch.+3D+Pass+Through+A/V+Home+Theater+Receiver/9846341.p?id=1218183109742&skuId=9846341&st=onkyo&contract_desc=null
i hope that my info was helpful