Luvshack,
You mentioned that you already have the Sunfire 5-channel amp. Do you really want an HT receiver (pre-amp/processor, plus 5-7 channels of amplification) or do you want an HT pre-amp/processor and plan to use the Sunfire for amplification?
If you are really looking for a single box solution (receiver) you might want to look at the Sony STR-DA7100ES. I own the DA5000ES which is a predecessor, and I really like it. I've owned Denon, Pioneer, B&K and other Sonys in the past, and the DA5000ES is easily my favorite. The new high-end Sonys use "digital switching Amplification" and they sound great. They are also very easy to use (IMHO).
If you are interested in the Sony, call Oade Brothers www.oade.com . They have excellent prices (better than any published web prices from my past experience) and they are authorized Sony ES resellers.(Disclaimer: not affiliated with Oade Bros., just a happy customer)
Enjoy,
TIC