Heres My current setup on a 4 shelf metal shelving unit that i bought.
1st Shelf is Speaker stuff
2nd Shelf is the ASIC mining shelf
3rd Shelf - Soon to be Litcoin mining shelf.
Have been waiting almost a week and a half for (42) more USB erupters to arive..

its a great setup, but why on earth are you buying/using USB miners? for whatever small amount of GHS you'll get from 42 USB sticks you could probably have bought a 200GH antminer