shady - I think your notion that the Denon won't power 4 ohm speakers has something to do with the verbage that nearly ALL manufacturers use on their cases and spec sheets only for the purposes of satisfying the UL people.
still - the componenet idea, or AV receiver w/ amps, deserves some thought. In a few years, that Denon's not going have the dolby this or dolby that. Look at all the nice, nice av recievers on craig's list that don't have hdmi, etc. They're selling for pennies on the dollar.
If you're ok with that, no problem. But Micah's first post on page one is right on, in my opinion.