Basic custom built AV rack.
I used Home Depot 1" x 24" x 48" board's (cut in half) and adj shelf sides.
Pretty cheap, $20/board, $80 total, maybe $20 for the hardware. $100 total so far, with $30-$40 more I'll have 3 sliding shelfs, works for me.
Yea, my AV is a little deeper than most, but I had the room so why not.
Workability/access is very easy.
From HT side, this is on the front/RH side of the HT:
I am going to make sliding drawers for the bottom for storage.
Backside is open/accessable from rec room side, I will make doors for this soon...
Wires are semi-organized, until I'm sure that I like where things are I'm not too concerned about style points.
Soon on the rec/room side there will be cabinets/sink next to the AV backide, you can see the rough plumbing pipe for that.
Doors added 11-7-08, I've not said this in years and years: