This is why I want a basement...put the tanks in the basement and run the lights during the evening/night for a reverse photoperiod. 7pm isn't that late you could still enjoy your tank after work. Have supplementals run 7pm-7am and halides (or whites) run start at 7:30 or 8pm. You can even put half your powerheads on timers so they only run while the lights are on.
My house is too light during the day to run reverse photoperiod.
EDIT: Oops, I guess there's an echo in here.
I posted the same thing as phi delt reefer.