It will include a mini fridge below. I have thought some about the heat and noise, but I had hoped to shop around and find something that will be tolerable in both areas. If I am in the room watching movies, the sound will be loud, so it will not bother me, but it could bother others, but it won't force me to change plans, I may just have to buy a pricier fridge. I planned on putting the sub in the front left corner of the room. I hadn't imagined that it would rattle the cabinets enough to cause a problem, so that is something I will have to think about. I doubt I will have much, but a few cocktail glasses and such.
I had decided with about a 14" inch bar top, wife and I looked at it and figured that would be plenty. I saw someone doing a 12" so I figured we weren't too far off the mark. The table will be 9' long as well, which should be long enough I would think to fit large couches in front. With it being up in front of the doors, I could extend that to 10' if you think it's necessary.
Speakers I was planning on towers, center, and sub, with probably in wall side surrounds, and most likely in ceiling rear surrounds. Yes the only two seats that will get the most out of the placement will be on the couch, and I am ok with this scenario. When we do have guests its entertainment in the form of alcohol and possible sports watching, movie watching will be for the wife and I.
I think 8 people will be rare, but nice to accommodate, but yes I have been concerned with the possible heat issue. As of now, it appears their could be two supplies, by looking at another home under construction, but I am not certain. I will discuss this tomorrow.
Builder is putting the power and a smurf tube in the ceiling for the projector. I had planned on around 15' to 16' feet back. I think I am leaning towards a 120" screen with the main seating area being around 11.5' - 12' back. Here is just a rough idea of speaker placement.
Edit: Number 7 is just a reference for the builder so I can explain to them about putting equipment wiring in lower cabinets. 6 is projector.