How do you have your under the tank setup?

How do you have your under the tank setup?
I'm looking for ideas on how people setup their controllers, dowsing pumps, sump place ment and really anything that goes under the sump.
I have a 7' long aquarium and I have room for the sump and my 3x 250watt ballasts under the tank but I want more ideas of other under tank setups.