Looking pretty cool! I know you're excited! For my own preferences, I'd have the lights over the bar and nearest the screen adjustable, to be able to pinpoint on the screen or top of the bar. I hid lighting track behind a soffit-like ledge for the screen spotlights, and just used a tracklight that had fixtures that looked like old movie lights for the bar. The rest of the area is lit up by sconces in the columns, and a bit from the rope lights in the lowered crown. Those two sets of lights can be pretty small, as they don't have a lot to light, with the middle set for when you want to light up the whole place.
Also, it might be a good idea to run an A/C duct to your equipment closet, with a vent at the bottom of the rack to return the air, kind of like a door with a wide gap at the bottom. It can be screened, of course, but experiement to make sure you don't have a rush of sound! Position it over the rack and that will help with cooling, too. Any light will be fine in there, even a couple of lamps pointed at the rack, since you shouldn't be spending an inordinate amount of time there. However, fluorescents are going to be extinct soon, so LED's, though expensive are the wave of the future.
You may already have a way, but consider an access to behind your screen, to get to your speakers. From the office would be fine, witha small access panel perhaps.. That way you won't have to move the screen to get to your speakers if and when you do!
Those rear surrounds seem a bit far back, perhaps consider ceiling mounted or in-ceiling types that can be pointed forward and down a bit. Just an observation!
Keep at it!