My recommendation is the RBH SX-8300, which you can probably get for under $3500 (MSRP $5K).
Each tower has the equivalent of about one SX-1010 subwoofer if you actively bi-amp the bass using an external amp (like a $280 Crown XLS1000 or $300 HSU subwoofer amp). Thus, a pair of SX-8300 would be like having dual SX-1010 subwoofers, again if you actively bi-amp the bass using LFE. So you may not even need additional subwoofers.
In terms of the midrange and treble, I think they sound as good as any speaker I've heard.
In terms of bass, if you actively bi-amp them, they sound better than any speaker I've actually heard, except for the SX-T2.
In terms of best placement for bass/LFE effects, according to Harman International research, 2 of the best placements are the front corners and the front 1/4W corner, which is about where most people place their front 2 speakers.
So go to the RBH website and locate a dealer near you. Maybe they have some speakers for you to audition.