Help designing a home theater/listening room

I am in the process of designing a home theater with an emphasis on a listening room. The media room space is 15 feet wide by 20 feet deep and the walls will be soundproofed. I am willing to spend around 30-40k for all the equipment and install. Wanted to get peoples thoughts on what would be a great system. So far I was thinking.



Power. Considering krell amp and preamp vs marantz amp/preamp vs Cambridge audio integrated amp



speakers. I liked the Elac black edition floor standing speakers or b&w and will get the matching center and surround speakers. For a 7.1 system.



Subwoofer - undecided on this but considering a genesis subwoofer.



Video. Probably 110 inch screen and jc projector for about 7500 total

Blue ray/Sacd player - oppo



any advice appreciated.