I need advice on which speaker

OK.  This is easy.  The most extreme value you can get at your price point is the Linkwitz LX521.  Most build it as a kit, but there's no reason you couldn't buy the kit from Madisound, along with the cabinet kit, and have a local woodworker assemble it.  Alternately you could just have a local cabinet maker fab the speakers for you.  They're not hard to build and finish.

The Linkwitz LX521 has extraordinary imaging, low end and some of the most natural and effortless mid-range you've ever heard.  Everyone who hears your system will leave with envy.  Everyone.

Google "Linkwitz LX521".  You buy the plans from Linkwitz for about $150, the drivers and miniDSP active crossover from Madisound for about $2000.  Do your homework on it.  Look around to see if anyone in your local area has built a Linkwitz design, whether the LX521, the LXmini or even the older Orion design.  This is extreme hi-end at a price we mere mortals can afford because all you're really paying for is cost of materials.

Were a manufacturer want to build and sell this directly, they'd have to charge a good $15k to $20k for it due to marketing and distribution costs.  At the bottom of the link below is a list of Orion owners who welcome visitors to audition their Orion systems.

http://www.linkwitzlab.com/orion_challenge.htm

Lets not forget about Zu-Audio
They make some fine speakers

Rick Craig at Selah Audio (http://www.selahaudio.com/) makes some fantastic speakers. He has several standard designs, and will modify any of them, or even make a custom design based on what you are looking for. He designed a front LCR set for me. When I bought an Anthem receiver, the salesperson came out to do the setup. He had heard all kinds of highend speakers over the years and was very impressed with mine. ... I love the small, direct-buy shops. You get great value. Rick's stuff would cost 2-3x more if he had a dealer network.

Just PM'd you, Blackjack, about the Monitors, Revels, and several others, etc.

Kef Reference 1, If the price is a little high, listen to the R500 and R700.