I am currently running 6 27w CFLs in the overhead fixture..... half are 2800K, the other half are 6500K on 18/6 for veg. The side lights are currently off as they are not needed *yet*.
When I switch to flowering, the overhead lights will all be 2800K and I will switch the side lights from 5000K to 2800 or 3000K depending on what I can get. In flowering everything will be on 12/12