There are these litter converter things you can plug into an outlet to make it hold a light bulb. You can rig up a little light fixture using some of these converters and a power strip. Keep in mind when you are thinking about how to position your cfls that they throw the most lumens off the side (not coming out of the top) and you will need some kind of reflectors to maximize how much bud you get for light invested.
PS to Bakatare666
Nice pic man. Is there anyway you could reposition those 8 lower bulbs so that they have the sides facing towards the plant | <==like that with a reflector behind it (made from a soda can)? You may be able to use your watts more efficiently