Get rid of one of the C4RBN's and add QX Expander for Quadrax. Move the DFAM and SubH out of the rack and buy one of those fabricated stands made for them, they take up/waste a lot of HP space in your rack. I have DFAM/SubH/Mother32 and bought a three tier stand for them...I can use them with or without the rest of my modular in this way.

JB