Try this. It should work pretty good for you. http://www.youtube.com/watch?v=Rs_QRorECvo
I used this concept for a few months before i decided to spend the money for an hps but this works pretty good also.
I USE GALVINIZED HEATING DUCT FOR MY CFL HOODS! ITS CHEAP EASY TO CUT AND WORKWITH AND CAN BE BENT INTO ANY SHAPE! HERE I HAVE A "WING STYLE " HOOD AND A ^ UPSIDE DOWN "V" STYLE THE V HAS 12 BULBS IN IT AND WHEN MY CANOPY GETS THICK I HAVE Y ADAPTERS TO GO UPTO 16 BULBS! MY OLD RIU NAME IS "WINKDOGG420" AND I HAVE HAD QUIET A FEW SUCCESSFUL CFL GROWS ON A REAL TIGHT BUDGET!! I HAVE MORE DOUGH NOW BUT I STILL PREFER CFLS OVER HID'S AND IM NOW USING FOX FARMS SOIL AND NUTES ONLY BECAUSE I NOW HAVE A HYDRO SHOP CLOSE ENOUGH TO GO PICK UP THE STUFF! IF YOU NEED ANY MORE TIPS ON CFL/BUDGET GROWING FIND MY OLD THREADS TONS OF PEOPLE HELPED ME ALONG THE WAY AND THERE IS A TON OF INFO THERE! DIY SOIL MIX , CHEAP NUTES , CFLS , TIMERS ,CONTAINERS , HARVEST , CLONING AND MORE IN MY THREADS!
GOOGLE "WINKDOGG CFL GROW ON BUDGET" THAT SHOULD GET YOU ROCKING!!