HPS with CFLS?!! is it ok

hello,
i am currently growing with cfls but i am starting to think that a hps is gonna be easier so i dont need like a thousand lights to created the right amount of lumens. Anyway i wanted to get a 250 wat hps system but i still want to use my cfls. I have 4 plants currently. Is it ok to use both at the same time? is it better to just use the cfls for clones and the hps for older plants? please help thanks. i am currently growing out of a 8 square foot grow tent. thanks

The more light the better! But, just make sure you don't cook your plants to death!

oh also anyone know how much more my pge bill will be with using a 250 or 400 watt system. thanks

Any comments on sun system self ballasted fixtures vs having a separate ballast?