HT system education

Hello all- a friend of mine referred me to this site and said I would get the best information here.
I can tell you that I am NOT an audiophile or a hobbyist in this sport. I appreciate any input from you folks.
Let me tell you about my quest.

budget: $2,000 to $4,000. I know that's a big range. And my preference is to find lightly used components or systems.

I am looking for a complete home theater system. My first preference is to buy one system, in one box. I saw the Sony Dream System- the DAV-LF1 and have been impressed with the quality, at that price.
But I'm not opposed to finding components and building them up.

However the one really big kicker is this- my house is all panel glass on one side and all rock on the other, and no way to route wires for the surround or rear speakers. The monitor is bolted to Texas Limestone, and you can't drill down it to get to the hollow wall. It is not possible to run wires so I have to use a wireless system for the rears. I've tinkered, dug through insulation and even considered running the wires through the vent cap in the roof, there is just no way with our vaulted ceilings and layout that I can get wires back there- and running them across the floor is not an option.

Here are some pictures so you can visualize what I'm talking about.

http://www.sumofallparts.net/images/aud/1.jpg

http://www.sumofallparts.net/images/aud/2.jpg

So given the budget I'm looking at, and bearing in mind I'm not a hobbyist what would YOU do? I'm just a guy with $4,000 who wants to have a good, loud and clean system to watch Sean Connery blow stuff up.

We will also occasionally watch TV (Discovery HD is about the only thing we watch!) listen to DVDs and Music-on-demand.