Here's my rack room. I'm using an MA Slim 5.
Here's the external access to the rack. It's ugly now since I don't have any external facing components. At some point I might install a hinged smoked glass door, but I don't want to impede airflow.
Rear access to the rack. It's not as wide as I'd like, but even a fat dude like me can still fit back there when needed. I put two LED lights into the recess above the rack, so there's plenty of light.
Back of the rack. Right now I just have my ethernet runs going into a temporary 100mb/s switch, fed by a TWC/Spectrum modem. We're getting fiber in our neighborhood this year, and I'll upgrade to GigE at that point.
My cable runs from both the HT and the rest of the house. I ran two extra conduits for future growth. One runs to the front wall and the other next to my projector's Powerbridge.
Here's the Powerbridge and dedicated 20amp circuit. The Powerbridge will connect to my UPS so my projector can cool down in the event of a power outage. We haven't had any since I've lived in this house (13 years) but might as well do it right.