You can achieve a decent yield with nothing but cfls if you hve enough of them...not sure what your best next move wld be...you clf flip them to 12/12 and veg with what you hve and you will wind up with some pathetic buds...you cld get a cpl more cfl's and add them to your lights and flip them...you cld buy an HPS setup and flower them out.
Bottom line is if you want to do it right then that involves some costs...you need adequate lighting, Ventilation (both intake and exhaust you want to exchange the air in your grow area), and nutrients...those are the most costliest to do it correctly... You can skimp on any one or all of these but it will affect your harvest...