My 2d system is out in the loft and is also my office. 4 monitors with a custom PC. I run a dragonfly red, Advent Smallers, SVS sub, TEAC CD/SACD, Pioneer turntable, Kenwood 3 head cassette deck, vintage McIntosh receiver used as a preamp, and a Luxman 505uxII. And a big McIntosh clock.
Also I have a home theater system in need of upgrading--Marantz, PS3, 50 inch TV and Klipsch lower line towers and sub.
And yet another 4th system in the exercise room.. Kenwood receiver, Philips 40 in TV, Infinity small speakers, also Epos Elans and an SVS sub, and a node 2i and panasonic bluray player.