Schwegs99
One point you make in your request for input here is that this effort is geared towards a 90% video involvement, and 10% music.
Films provide a lot of content that coincides with music, yet it adds to that with real world noises. Meaning speed and presence is key. Amps with good power reserves provide that result. So do speakers with good sensitivity.
The biggest or most additive piece to the HT puzzle, besides the image size and a cohesive sound field, is the subwoofer. Somehow you gotta figure in a very good sub for a more involving experience, into the speaker budget if not immediately, very soon thereafter..
So some decision as to the degree to which you want the audio recreated is in order too, along with the interface options available now. Namely Im speaking of HDMI.
Marantz/Denon, Onkyo/Integra, are IMHO more musically oriented appliances. Machines like Pioneer, and Sony in my exp, owning and selling them, are more adept at the HT aspect. They seem to possess more snap and sizzle than do the formers. More jump factor if you will.
Many people here are a bit more musically oriented and the posts to that effect are well represented by their voices on the receiver choices listed here already.
Warmth in the audio region can become a subtractive element if too much is added within the mixture.
Personally I feel youre pretty hard pressed to go wrong with what ever you wind up selecting by way of receiver & speaker combos. Id listen to as many setups as I could. Read as much online via the dedicated AV mags & forums, and look for flexibility, interface options, and local support if possible, along with items that fit into your budget to make your final picks.
The sub, the display, and the sound field are the key elements. Of the sound field, the front mains and center ch speakers (if a center is to be used) should be as congruent or seamless as possible. In fact if the prospective receiver will allow for a virtual or ghost center ch that will enable some funds to be freed up for say a better sub.
It will all work out for you Im sure so just put what you can now, where you can. BTW my first decent HT rig was Sony es AV receiver + BW 600 series speakers and Velodyne sub .. things have since changed as they always will.