CJ
Heat is the issue with those non IC little cans if you run a LED bulb instead of the halogen I don't really think its a issue since the LED"S do not put off any real heat. You can put your fingers on the face of them and keep it there try doing that with those Minnie halogens. and the LEDS come in a ton of colors or plain old white

I will post some photo's of my light install soon
I have not pulled any of my wire yet I am planning that shortly. I ran the conduit just for the fact if any of my wires be it speaker-sub-IR goes bad or I want to add a wire I can just pull out the bad and pull in the new. I wish I would have just run two one inch orange smurf tubes to the front

I have learned alot along the way of the things I would do a bit different. I planned to use wall plates but since I am using a acoustical transparent screen I'm just going to run my speaker wires from source to speaker

It would really suck to do all that work and have one speaker wire or sub cable go bad and not have a way to get to it without tearing up your drywall

CJ good luck on your build and keep asking questions it only helps you in the long run