Nice wiring job! Where did you end up putting the "excess" cable length? I had to loop some cables along the vertical posts.
I put the pre-amp and amp together for cosmetic reasons. But there is no reason I can't flip the fan and amplifier. I believe I have the requisite cable lengths. I'm somewhat limited in prettying up the wiring by the "short" speaker wires. Not enough length to wire them off to the side of the rack and down. However, if I move the amplifier down .....
The neat thing about the rack fan is the configurable airflow paths. I have the fan currently set to draw cool air from its bottom and front and force it through its top through the amplifier. I actually have another fan that I'm thinking of inserting above the components that will draw the warm air from the bottom and shoot it out its back. Then I have a ventilation return in the AV closet that vents the warm air from the ceiling out of the room.
I like those cable lacing bars. I have to order a shelf/faceplate for the new DirecTV receiver and will get some of the bars at the same time.
Progress certainly takes a back seat (literally in my case as all this stuff is BEHIND my theater seating) once everything is hooked up and playable!