Mike0,
Once you are spending that much money on a set of speakers, it all comes down to personal taste. M&K has a good reputation and is used (the higher end models) in the making of many films. M&Ks top of the line sub is one of the best you can buy for movies (it's close to 2K I think just for the sub).
I would really go around and look at many different speakers if you are going to spend that much. I think there are better for music than M&K. Pick up an annual copy of What-HiFi, Stereophile, and other popular audio mags. They usually have a yearly blowout where they select the best setups for every price range (under 1K, 1-3K, 5-10K, 10+ etc.).
I personally love B&W high end speakers (CDM series, Matrix and up). And I'm still of the opinion that electronics are key (of course, every component counts). Garbage in- garbage out is how I see it. If you're DVD/CD player is low end and can't even send a quality signal to the speakers, you will only hear what it is capable of picking up.
And I am putting this out there... once you hear separates you will never be able to go back. No receiver will do.
If you truly are ready to spend what you said, REALLY shop around. Find a few hi-fi shops and listen to their setup.
Whether they are Energy, B&W, M&K, or another mid to hi-fi brand, your price range puts you in the separates category. Don't spend all your money on the speakers and skimp on electronics.... find a balance.
Spend 1K on a pair of Rotel (or similar) separates. audio-video logic currently has a deal on the AMP and PREAMP for 1K.
Pair that with a set of floor standing mains, matched center and smaller satellites (1-1.5K range) and you will have a system that blows away every movie theater in the country.
Main point: take the time to listen to A LOT of different setups. Go to the local B&W dealer. Ask to hear their setup with Rotel or Krell components. Do the same for M&K, NHT, ProAC. If you are set on Energy which is a bit lower on the scale, but VERY competent... look in Canada. It's a Canadian company and you can buy from a retailer in Canada for close to half the US price- tax free.
1K could buy you their top of the XL line floor standing speakers, matching center and satellites. They're not B&W, but they still sound good.
You're on a slippery slope. This is how buying hi-fi is. As soon as you have made a decision, you hear something else or see something else that is even better. If your rush in, it will be a matter of weeks before you find something new and want to upgrade again. Take a long time to research and listen. It's like shopping for a car and is supposed to be one of the best parts of owning it. Enjoy yourself. Spend days going to various shops and auditioning setups and deciding for yourself.
As soon as you find what sounds best to you... you will start to notice even more important things. Quality sound will become a given. You will hear a system where if you close your eyes, you can actually place every instrument and sound on a 3D soundstage in front of you and point to where each musician
is sitting/standing. And this is with only your 2 main speakers playing for a CD.
Enjoy, research, learn, and have fun. It's very addicting and very expensive.
My opinion is that separates are the first big leap to having a truly high end system with the characteristics I mentioned above. Don't cheat yourself and find a shop that can show you. Good Luck.
BTW- This is all referring to home audio. I don't know a lick about car audio.
I haven't heard a car audio system yet that can hold a candle to Hi-Fi home setup. It has to do with the listening space and acoustics.